1 definition by golfcheater
A man whose ass is fully grown.
A very popular and time tested description of a man who is fully grown physically (which usually completely ends around age 25) and who is simply an adult, but does something an adult shouldn't do, such as not paying the bills or sleeping in too late, or neglecting his child(s). After the event, it is then considered that he is a fully developed man, and as such he is then called a "Grown ass man" as a tongue-in-cheek insult. Usually has a big butt.
A very popular and time tested description of a man who is fully grown physically (which usually completely ends around age 25) and who is simply an adult, but does something an adult shouldn't do, such as not paying the bills or sleeping in too late, or neglecting his child(s). After the event, it is then considered that he is a fully developed man, and as such he is then called a "Grown ass man" as a tongue-in-cheek insult. Usually has a big butt.
Jessica: Girl, you wouldn't believe it - this GROWN ASS MAN was checking out my butt at the grocery store and then asked me out!
Sibley: But your ass isn't even fully grown! What a perv!
Sibley: But your ass isn't even fully grown! What a perv!
by golfcheater December 1, 2020