Stiffy

Boner or errection, only in male humans (Occasionally animals)

Look, I have a stiffy

by Car fucker March 28, 2019

Stiffy

Slang for an extended magazine for a gun. Extended magazines can hold more rounds, or bullets, than a standard magazine.

That guy’s handgun has a stiffy... We’re screwed.

by CR1PT1S1SE March 7, 2018

stiffie

noun.
1.an erect penis
2.Jordyn

Austin says:
that stiffie is such a lesbian
Eli says:
...
Eli says:
wtf tommy XDDD

by Fruit Carver September 16, 2008

Stiffy

An extended magazine for a firearm.

"You already know I got a Stiffy on this glock"

by Kazials February 3, 2018

Stiffy

A word used to describe the typical stance of our soldiers.

He stood on guard outside Buckingham Palace looking like a big stiffy.

by Ooossshh April 21, 2018

stiffy flapping

Combining Viagra and Redbul and having sex in order to increase intensity and the length of sexual encounters.

That girls walking like she was stiffy flapping all night last night.

by JakeMontana February 12, 2017

concrete stiffy

A very hard erection of lasting duration.

She teased me to extremes, my prime boner was a concrete stiffy!

by little miss perky February 10, 2009