If a Sinclair is Sneaked into an image without someone noticing it then they have been Sneaky Sinclaired
by N00bTDP November 27, 2018

When you see someone in a gym that has really lean arms and legs and looks fit in shorts and a singlet, but when they take their shirt off they have a chubby stomach and back fat. The person is said to be 'sneaky fat'.
by Marcus Davidsson March 10, 2009

To finish ejaculating with your hand after sex with a female, then acting like you clean your hands, only to get into bed and act like your caressing her hair while your actually rubbing semen in it.
Friend: "Dude, what was wrong with that girl's hair in you bed this morning?"
You: "Oh, I gave her a Sneaky Hairstylist last night."
You: "Oh, I gave her a Sneaky Hairstylist last night."
by straight grizz September 25, 2010

where you stand in a crowd of people with your testicle out and if your ball gets cold and no one notices it is out, you win and if someone says SNEAKY BALL then you loose. This is a great family game.
by Mobbly November 20, 2011

by SneakyPoo December 25, 2007

Hanging out with someone and making out but on the low. You do not tell anyone and it doesn’t mean anything, no feelings or strings attached, just for the fun of it.
by anonymous December 15, 2021

by Sneaky beaky January 29, 2015
