by Jymothi November 6, 2021

An erection. A dick getting hard due to sexual excitement. Hot girls tend to make a guy’s dick all stiffy.
Me: (Watching a Marilyn Monroe documentary film)
My mother: Are you getting all stiffy?
Me: LOL, shut up.
My mother: Are you getting all stiffy?
Me: LOL, shut up.
by AntiCircumcisionMan May 3, 2021

by The Gapists May 7, 2014

by uvuboy446 August 20, 2021

by Yo8484 March 17, 2017

The exceedingly uncomfortable and inconvenient bent-far-forward position that you are forced to assume when sitting on the toilet and trying to urinate, but you have a "stubborn" boner that refuses to "relax", and so you have to awkwardly lean way over with your head down between your knees in order to rotate your abdomen far enough to get the tip of Mr. Happy down into the bowl.
It's a good idea to take a good long whiz **before** "getting it on hot 'n' heavy" with a luscious chick --- especially if you also take a Viagra/Cialis pill prior to said bouncy-bouncy --- to avoid any unexpected stiffy-squats.
by QuacksO April 16, 2019

Getting an erection due to having to take a piss.
Similar to Morning Wood, except it happens while you're awake.
Similar to Morning Wood, except it happens while you're awake.
Ashley: Is that a gun in your pocket, or are you just happy to see me?
Cam: Neither; it's a piss stiffy.
Cam: Neither; it's a piss stiffy.
by Camshot4 June 8, 2016
