1. The erection you get when you free your penis from your tight underwear.
Wife: how come you always have an erection when you get home from working at the construction site? Are you gay?
Husband: Don't worry baby, it's just a freedom boner
when you get an erection from doing something epic or doing something that requires bad-mother-fucker-ness
zach and andrew were talking about basic training and after basic zach said he had a freedom boner