A term used to describe a woman or girl who embodies a unique combination of qualities associated with both "mom" or "mommy" and "tomboy" energies. A momboy is someone who effortlessly balances traditionally nurturing and caring attributes with characteristics typically attributed to tomboys, such as being adventurous, independent, and non-conforming to gender stereotypes.
(v.) When, on facebook, someones facebook page gets creeped on by their mom, especially when a mom uses her facebook friend-status to look at the pictures, posts and statuses of her child/children to gain information that the child did not want his/her mother to know.
mombooking, mombooked.
Girl 1(status update): party tonight! its gonna be awesome!
Girl 2(comment): yeah were gonna get more wasted than last time!! maybe we can find some more guys that will take us back to their place!
Mother of Girl 1(comment): you aren't going anywhere tonight, call me right now!