Pummel Suck 

To suck the butt cheeck so hard you taste the peepoo

"Nothings harder then the way i pummel sucked your mom last night"

Pummel Suck by PummelSucker500 September 30, 2019

You suck my dick and I'll suck yours 

When you help another person, on the condition they help you back in return. It's basically another iteration of "you scratch my back and I'll scratch yours"

I'm going to help you on this test and you'll help me. you suck my dick and I'll suck yours.

You suck my dick and I'll suck yours by Manix Torres Garcia Alejandro November 15, 2020

Sussy Suck 

When you you're getting good head in electrical.

Red: What were you doing in electrical?

Blue: Pink was giving me the ol' Sussy Suck.

Red: Damn, lucky.

Sussy Suck by Virtual Fella May 2, 2021

Crescendo of Suck 

When you go above and beyond a normal FAIL.
To truly experience a crescendo of suck you must fail so badly that you will hear a large swelling of noise, usually the sound of people gasping or laughing.

Sports fan: Man if this team doesn't start pulling it together I am gonna give up on them

Sports fan 2: I know man, I can already hear the crescendo of suck.

Crescendo of Suck by madworldradio October 15, 2009

reason you suck speech 

When you tell someone who you're incredibly pissed off with or just generally someone you don't like every single reason why you don't like them.

(Apparently you have to have the word reason you suck speech in this so i just put it here)

I always wondered what kind of person could do such a thing. But now that I see you, I think I understand. There’s just nothing inside you. Nothing at all. You’re pathetic and sad and empty.

reason you suck speech by kimwest October 25, 2014

Double Ham Suck 

When two women 69 and suck each other's ham.

I would pay money to see Kate and Jenny in a double ham suck.

Double Ham Suck by Dickers.0 February 18, 2015

Long titty suck 

The act of suckling on titties for a long period of time. Typically 15 mins. However, certain circumstances allow for up to 30mins.

Bob went to the nudie bar and gave a long titty suck to an exotic dancer. But because of his outward appearance and charm, he was allowed an additional 15mins at no additional charge, totaling only $130 in cost!

Long titty suck by Defectedambassadors February 18, 2017