Nightstick 

The act of dipping one's penis in Nyquil(or a similar product), and subsequently receiving oral stimulation, resulting in a state of slumber for the one who performed fellatio

"Stacy was struggling with her insomnia last night, so I gave her a nightstick to help her sleep. It ended well for both of us."

Nightstick by ThespianBelfry June 25, 2017

nightstick 

cop cock,police penis, aka dick

Dialogue
Person#1 Yo I got drunk at this party, and stumbled into a cop

Person#2 Did you touch his nightstick?

nightstick by Smooth Ustaaz April 5, 2008

nightstick 

In gay lingo, a large black cock.

Tyrone's nightstick was so long you could see the outline of it in his jeans down to his kneecap.

nightstick by Richard Black March 11, 2005

polishing the nightstick 

Masturbating a large, black cock.

Daunte and Dwight slumped in their seats at the back of the porno theatre, enjoying the movie while polishing the nightsticks. Their oversized dicks attracted the attention of several theatre regulars.

polishing the nightstick by MTSpacey December 27, 2007

Hammer out a Nightstick 

Taking a long solid shit. Should usually be long enough to touch the water in the toilet before breaking off from the balloon knot.

Barry: Yo man, you almost ready to go?
Cody: I'm running a little late cause I had to hammer out a nightstick

Hammer out a Nightstick by CB Creepers September 4, 2011

Alabama nightstick

When you pull your dick out and beat a woman in the face with it.

This chick mouthed off to me so I gave her Alabama nightstick

Alabama nightstick by Bad harry October 25, 2018

Arabian Nightstick 

This is when you shit into a tubesock, put it in the freezer, and THEN beat somone about the head and shoulders.

I will take my Arbian bullwhip store it over night in the freezer & then beat you with my Arabian nightstick

Arabian Nightstick by Brother Zitt August 22, 2011