An oath between men, usually homoerotic in nature, that is traditionally "bound in cum" (i.e. said deal is sealed through the act of sexual intercourse between said men).
Well, I don't know what to say. Mark's been a buttplug for awhile now but if willing to give me a man oath that he can get us tickets to Peter Gabriel next weekend I'm willing to give him a chance.
by buttbuttmanman January 16, 2019
Get the man oath mug.