Definition

A cheeky euphemism for a man's buttocks, playing on the double meaning of 'bumps' as raised protrusions. Usually employed in humorous or flirtatious contexts.

Example Usage

She joked that she needed to see his manbumps before deciding if he was worth dating.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=manbumps&defid=7124)