A mistake without admittance, however recognized by involved parties and not mentioned thereafter.
A chum walked away from a friend after accusing them of an ill action, despite being wrong. They both knew the manstake, and decided not to mention it.
by SnowTheDictionary August 14, 2014
When a man fixates on a woman at a distance only to note that the woman is a man upon closer inspection.
The other day I saw a hotty on the beach, but she turned out to be a manstake.
by Mark Kessel January 13, 2008