When you you're so happy for a bro who hooked up with an attractive girl that you have a boner.
"Dude Amanda is fucking hot. Totally sporting a support boner right now, good job man"
by Milhau5 October 7, 2014
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Some form of information that helps a boner form.
Boyfriend: Hey babe I could use some boner support while your away for 2months.
Girlfriend: Don't worry I'll give you one or a few everyday ;) .
by IvyPoe January 4, 2016
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