Something males (mostly) get when they attempt to console a female who has recently found out about an unfaithful mate.
Sarah: I can't believe he cheated on me. Uh, what's that?

Daniel: It's a sympathy boner. Come get a hug.
by howoriginal February 27, 2014
Get the Sympathy Boner mug.
When you feel bad for her , but she rockin' them jeans.
Man, that sucks she lost her job, but damn! Her ass giving me a sympathy boner.
by !nsert pseudonym here February 21, 2016
Get the Sympathy Boner mug.
When one guy sees another walking down the street w/ an ill concealed boner, the following ?????? steps occur:
1. Guy 1 sees the unfortunate boner
2. Guy 1 thinks about why Guy 2 might have this boner
3. Guy 1 thinks about the things that might make this happen to him, too
4. Guy 1 stubbles across an arousing memory or idea
5. Wham-o, sympathy boner.
Guy 2: *boner*
Guy 1: Aww that sucks *sympathy boner*
by ThatsOneL November 26, 2009
Get the sympathy boner mug.
Man I am so wet from crying i so need a wank right now. Sympathy boner
by test12 December 13, 2015
Get the sympathy boner mug.