Laugh my butt off. the clean version to say around the preacher. but when your at school, just say the original one.

the whale tail is the shape formed when a g-string rides up high over a womans trousers

Laughing my butt off. A less dramatic version of LMAO.

alternate way of expressing extreme laughter, to the extent where ones burca falls from ones head. Not enough for one to 'laugh ones ass off', but enough for a burca to fall.

lmbo: samething as lmao unless the b is used differently. Ex. lmbo: laugh my boobs off, laugh my balls off or just laugh my butt off

a healthy alternative to lmao/lmfao to use in schools in case the teacher finds out you're passing notes and reads it to the whole class

Laughing My Butt Off, used in IM conversations.