Top definition
Let my Bum Bum out ! lyou say it on msn

when someone you don't know talking with you!
1: hey

2:who the hell is this?
1:it's shane
2: i don't know you

1: asl
2:LMBBO ! ignored !
by YUS YUS BUM BUM September 04, 2010
Get the mug
Get a LMBBO mug for your dog Riley.
2
LAUGHING MY BLACK BEHIND OFF. ANOTHER WAY OF SAYING LAUGHING MY ASS OFF OR LAUGHING MY BLACK ASS OFF,BUT IN A WAY YOU CAN SAY IT AROUND YOUR PARENTS.
MAN I WAS LMBBO WHEN I SAW Zack and Mari make a porno
by GOGO VON April 19, 2009
Get the mug
Get a LMBBO mug for your cousin Helena.