Top definition
A person who is very subtle or sneaky when it comes to looking at a female's breasts.

Used as a compliment by males and a warning or an insult by females.
Girl1: Bob said that he didn't masturbate. He's so lying.

Girl2: I dunno. Maybe he's telling the truth. I mean, I've never seen him look at a girl's boobs before.

Girl1: That's because he's probably a boob ninja.
by Littleman29 February 24, 2010
Get the Boob Ninja neck gaiter and mug.
Sep 14 Word of the Day
Micro marriging is when your partner manages your personal day-to-day tasks with you much like a Micro Manager at work.
Wife: “Have you put the sheets out to dry and put the towels on?”
Husband: “Yes. You know I am a grown adult also used to live alone so you do not need to micro marrige me”
by Thomas Maddocks March 16, 2018
Get a micro marrige mug for your mama Nathalie.
2
A ninja that is addicted to boobies and possibly cocaine.
Woah, that boob ninja was totally just checking me out.
by The Waffler December 08, 2005
Get a Boob Ninja mug for your buddy José.