Manghole is a word used to describe a friendbeing an ass of sorts. when you are so utterly tired of being called mang, you call them a manghole as a reply to such gestures.
1. Cast metal circular cover providing access to an urban sewerage system.
2. Male orifice, typicallythe mouth but also could refer to the anus or butthole.
"You are talking out your manhole homes."
"Dude you want to keep your manhole covered or someone's gonna cap your ass."
Mark came home to Manahawkin opened the door to find the Manahawkin Manhole Coverhappening in his bedroom right when his friend was covering his girlfriends ass with his balls