Go back 

A phrase common on various imageboards, especially the Chan boards.
The phrase is used to imply that someone is simply a tourist from Reddit-- which the Chan boards specifically despise-- and therefore must "go back" as they are not a part of this community.

Anon 1: "Wanna see my dank memes?"
Anon 2: "You have to go back"

Go back by Bonfou November 5, 2020

Go-back 

An item left at/in someone's residence, car, bag, etc, used as an excuse to see said person again.

"I hope I get to see Jeff again. I left my sweater in his car as my go-back."

Go-back by Ender_187 November 3, 2012

Go back to sleep 

When a person has no idea what's going on, you tell them to go back to sleep.

Mr. N: What would the dimensions be on this gear?
Student: Uhhhh.......78?
Mr. N: Go back to sleep. Don't try to wake up.

Go back to sleep by SPlDERMAN August 19, 2006

Go back to the valley

A jocular, non-serious way of telling someone that they are sucking at something (usually surfing or skateboarding or some such activity). The expression originated among Los Angeles area surfers who would try to intimidate surfers from farther inland (usually the San Fernando Valley) into not surfing at “their” break. Locals could tell a “Val” because people from the valley usually weren’t very good (not having access to the beach as easy as coast residents). Hence the expression becoming synonymous with “you suck.” Was popularized as a catch phrase by several bad Hollywood surf movies (eg Point Break).

Dude 1 tries to kickflip off a curb and falls on his face.
Dude2: Hahaha, go back to the valley.

Go back to the valley by Uncle Dungheap June 12, 2006

go back to la 

A phrase mouth breathing stinky ignorant Yucca tweakers use to signal people from out of town that they aren’t selling enough meth to afford a house.

“Go back to LA, you damn hipsters!”

go back to la by SimpleSimonSavesMermaids May 26, 2021

go back to africa

Phrase used when a black person is living in a white country

Here is england, here is not your land!, go back to africa!

go back to africa by lithuania4life January 30, 2008

go back to europe 

1. a racist term that is directed toward a white person.

2. It's a comeback insult used for blacks who were told to by a white person to go back to Africa.

White: "Go back to Africa!"
Black: "And you go back to Europe!"
White (speechless)

go back to europe by PeterRDGriffin September 24, 2009