diff --git a/app/src/main/java/com/keylesspalace/tusky/LoginActivity.kt b/app/src/main/java/com/keylesspalace/tusky/LoginActivity.kt
index 659e7654..02e3d54e 100644
--- a/app/src/main/java/com/keylesspalace/tusky/LoginActivity.kt
+++ b/app/src/main/java/com/keylesspalace/tusky/LoginActivity.kt
@@ -34,6 +34,8 @@ import com.keylesspalace.tusky.entity.AccessToken
 import com.keylesspalace.tusky.entity.AppCredentials
 import com.keylesspalace.tusky.network.MastodonApi
 import com.keylesspalace.tusky.util.ThemeUtils
+import com.keylesspalace.tusky.util.rickRoll
+import com.keylesspalace.tusky.util.shouldRickRoll
 import kotlinx.android.synthetic.main.activity_login.*
 import okhttp3.HttpUrl
 import retrofit2.Call
@@ -138,6 +140,11 @@ class LoginActivity : BaseActivity(), Injectable {
             return
         }
 
+        if (shouldRickRoll(this, domain)) {
+            rickRoll(this)
+            return
+        }
+
         val callback = object : Callback<AppCredentials> {
             override fun onResponse(call: Call<AppCredentials>,
                                     response: Response<AppCredentials>) {
diff --git a/app/src/main/java/com/keylesspalace/tusky/util/RickRoll.kt b/app/src/main/java/com/keylesspalace/tusky/util/RickRoll.kt
new file mode 100644
index 00000000..03c3339f
--- /dev/null
+++ b/app/src/main/java/com/keylesspalace/tusky/util/RickRoll.kt
@@ -0,0 +1,20 @@
+package com.keylesspalace.tusky.util
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import com.keylesspalace.tusky.R
+
+fun shouldRickRoll(context: Context, domain: String) =
+        context.resources.getStringArray(R.array.rick_roll_domains).any { candidate ->
+            domain.equals(candidate, true) || domain.endsWith(".$candidate", true)
+        }
+
+fun rickRoll(context: Context) {
+    val uri = Uri.parse(context.getString(R.string.rick_roll_url))
+    val intent = Intent(Intent.ACTION_VIEW, uri).apply {
+        addCategory(Intent.CATEGORY_BROWSABLE)
+        addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+    }
+    context.startActivity(intent)
+}
diff --git a/app/src/main/res/values/donottranslate.xml b/app/src/main/res/values/donottranslate.xml
index 5e57942e..c7d02ee4 100644
--- a/app/src/main/res/values/donottranslate.xml
+++ b/app/src/main/res/values/donottranslate.xml
@@ -104,4 +104,10 @@
         %1$s; %2$s; %3$s, %13$s %4$s, %5$s; %6$s, %7$s, %8$s, %9$s; %10$s, %11$s, %12$s
     </string>
 
+    <string-array name="rick_roll_domains" translatable="false">
+        <item>gab.com</item>
+        <item>gab.ai</item>
+    </string-array>
+
+    <string name="rick_roll_url">https://www.youtube.com/watch?v=dQw4w9WgXcQ</string>
 </resources>
diff --git a/app/src/test/java/com/keylesspalace/tusky/util/RickRollTest.kt b/app/src/test/java/com/keylesspalace/tusky/util/RickRollTest.kt
new file mode 100644
index 00000000..6a6a5d53
--- /dev/null
+++ b/app/src/test/java/com/keylesspalace/tusky/util/RickRollTest.kt
@@ -0,0 +1,34 @@
+package com.keylesspalace.tusky.util
+
+import android.app.Activity
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.keylesspalace.tusky.FakeTuskyApplication
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.Robolectric
+import org.robolectric.annotation.Config
+
+@Config(application = FakeTuskyApplication::class)
+@RunWith(AndroidJUnit4::class)
+class RickRollTest {
+    private lateinit var activity: Activity
+    @Before
+    fun setupActivity() {
+        val controller = Robolectric.buildActivity(Activity::class.java)
+        activity = controller.get()
+    }
+
+    @Test
+    fun testShouldRickRoll() {
+        listOf("gab.Com", "social.gab.ai", "whatever.GAB.com").forEach {
+            rollableDomain -> assertTrue(shouldRickRoll(activity, rollableDomain))
+        }
+
+        listOf("chaos.social", "notgab.com").forEach {
+            notRollableDomain -> assertFalse(shouldRickRoll(activity, notRollableDomain))
+        }
+    }
+}