Old Faithful 

When you’re riding a guy’s cock and you squirt so hard that you force his dick out of you with the ensuing gush.

I was riding him like a pony when he made me have an old faithful and I launched myself right off his dick.

Old Faithful by Taz’sgirl November 14, 2019

Old Faithful 

When you’re asspumping a dirty tramp face down on your mattress and feel like it’s that time time of day. Your dick hurts and it’s time to take a piss. With your Johnson stuck deep in her rectal cavity, you strike a firm blow to the back of her head in order to make her ass tighten up so there’s no way out of it for this bitch, then proceed to leak in said area until you feel the tank is properly full. As she screams in disbelief, swiftly remove your genitalia from the region. This should produce a large eruption of your unloaded piss which exits the asshole with astounding velocity, mimicking the famous geyser located in Yellowstone, Wyoming.

Her: What the fuck, did you just piss in my ass?!

You: (Whips out phone) Holy shit it’s old faithful!!

Old Faithful by JJbangs124 June 27, 2020

Old Faithful 

Getting a blow job while sitting on a bidet getting your asshole cleaned.

I was in the bathroom after I took a shit. My old lady came in and gave me an Old Faithful while I was in the bidet.

Old Faithful by Ye Ol Faithful October 13, 2023

Old Faithful

The act of having anal sex with somebody experiencing diarrhea.

I took Glenn to Yellowstone but he had tummy issues from the campfire chili. Old Faithful definitely came according to schedule that night.

Old Faithful by JrHoodRat November 15, 2025

The old faithful 

when a male ejaculates into their partners belly-button crevice and proceeds to punch them in the sides and making the man-juice shoot up like a geyser.

neil gave that bitch the old faithful last night.

The old faithful by Ben Paxton September 27, 2007