H.B.O.

Hand (the) Bag Out. Sticker over the inside of McDonald's drive-thru window reminding the worker to hand the customer's bag out to him.

Remember to H.B.O. when working the window.

by Nezbit-the-cat January 31, 2009

H.b.o.

Slang. Horrible body odor.

Bro! That guy has H.b.o.! Wtf is that?! It’s horrible body odor!

by B-rizzle February 14, 2019