I Swear To F*ck
It's a word u say when ur really angry at someone, you replace "God" with "F$#k" because it sounds more serious and ur not playing around.
Bastard: Hahaha
Good bastard: I Swear to F*ck stop adding me in that group chat!!
Good bastard: I Swear to F*ck stop adding me in that group chat!!