When a girl thinks a guy has a small dick, only to be shocked at how much larger it gets when aroused.
I didn't think he was packing much until he pulled a sneaky whiteboy on me and I had to choke down 8 inches!
by StreakyBacon September 22, 2004

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

by 5156988 May 18, 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
