What is farewell fuck?

When u ask a foreigner to fuck before they leave back to their country for break or back home. Aka deported

Yo do you want to farewell fuck?

farewell fuck - video

Farewell fuck - what is it?

n. a quick and meaningless screw you have for 'old times sake' with someone you just dumped, or just dumped you.
It mostly just makes the breakup easier 'cuz it's the worst screw you've ever had.

A: I just had the worst screw of my life!
B: Farewell fuck?
A: Yep.