when a guy sees something he finds sexually stimulating and makes his penis become hard and he wants to fuck whatever it is
by Marley :) June 24, 2017
Get the Bonermug. by Jon200105 February 27, 2013
Get the Bonermug. by Ligmaboi308 February 5, 2019
Get the Bonermug. What occurs when blood rushes to the penis, causing it to stick up. it is also possibly the worst thing to get before a school presentation.
by Sapphire Flames March 3, 2011
Get the Bonermug. Bob: Uh oh!
Joe: What is it?
Bob: I got a boner
Joe: OOF that sucks. Hope the teacher doesn't ask you to present
Teacher: Bob, can you come up here please?
Bob: Shit!
Joe: What is it?
Bob: I got a boner
Joe: OOF that sucks. Hope the teacher doesn't ask you to present
Teacher: Bob, can you come up here please?
Bob: Shit!
by TROLLKING9001 July 12, 2020
Get the Bonermug. Erect penis that happens when a male is sexually excited/stimulated. When blood flow rushes to it and causes it to stick up directly!
by loverb0yy April 14, 2021
Get the Bonermug. 