head%20bin 

See Head Bin . Basically, some html expert messed up and but this here since %20 means "space".

Me: Did you see that idiot shoot 12 shots of jager in a row?
Tech savvy friend: Yeah, he's such a head%20bin

head%20bin by A. Dvious One November 17, 2017

head%20bin 

To break down the word , head refers to getting neck ( having ones genitals sucked). %20bin refers to the amount of nut you have in the "tank". So the term head%20bin simply is defined as , upon getting neck one nuts beforehand ,therefore lasts longer during oral sex.

"Yo bro , Ashley is about to give me neck for hours cause I have that head%20bin."

head%20bin by ovo_joel April 20, 2018

head%20bin 

when your girl sucks your dick and 20% of your balls

guy 1: yo my girl gave me head%20bin last night
guy 2: nice bro.

head%20bin by o hell ye April 20, 2018