HB is a sexual act that defies description. It is so heinous that one is completely embarrassed by the mere mention of the act. Some have inferred that the "H" refers to hands, but the jury is still out on this. It is often done by members of the same sex or, in extreme cases, solo.
In order to further his career Marty A. allowed Dick C. to give him an "HB". He was sore for a week and never walked the same afterwards.
by little brown dude May 20, 2011
George: Oh, look. It's Betty's birthday. I'm going to write on her Facebook wall hb!
Marilyn: Harry Potter?!?!
Marilyn: Harry Potter?!?!
by Shabbos Buddy April 9, 2010
"Hb" also known as "horny bastard." It is given to a male or a female when they are extra horny and will do anything for sex. People usually say "HB" instead of "horny bastard" so that people won't know what they're saying.
Tom: "C'mon babe, let's fuck."
Kelly: "No, I'm busy."
Tom: "I'll buy you ice-cream. *sweats*"
Kelly: "Fuck off you HB!"
Kelly: "No, I'm busy."
Tom: "I'll buy you ice-cream. *sweats*"
Kelly: "Fuck off you HB!"
by Lilbunnybabe April 6, 2015
as the two vagrants were participating in the ancient ritual of hobo butt sex, the first vagrant moaned, "ggrrrrgrrr" gingerly into the second vagrant's ear
by converse man April 6, 2005