Sent via text, the acronym "GMFBO" stands for "Giggling My Fucking Balls Off" this acronym is a more vulgar version of saying LOL or LMFAO. This should be used by only men, transgenders or women who also happen to possess testicles
Helen: My parents are idiots! They think I'm going to the football game when I'm actually going whoring around with my slutty friends!
by Tommy Littlefoot III May 27, 2012
Can you define these popular missing words?