Rock snot 

when your boogers are so dry and hard it is as if you have rocks for snot. Usually discovered upon waking up in the morning, especially in the winter.

I tried blowing my nose when I woke up this morning but I had rock snot and nothing budged.

Rock snot by CLS CU January 16, 2015

Snot Rock 

A Snot Rock is a rock of mucus located in either the mouth or the throat. It is usually formed overnight when sitting mucus begins to harden. It is very disgusting and I myself have only witnessed it one time.

So I woke up this morning and as I'm about to get in the shower, I feel the need to cough. After I cough I feel a lump in my mouth and so I spit it out and a Snot Rock comes flying out.

Snot Rock by Pantho May 28, 2009

rock ya snot box 

to hit someone in they face; sneek

Devin: darkness every body darkness is spreading
Akkeem: yo dev dont make me rock ya snot box

rock ya snot box by Sha Boy Devdogg June 7, 2005

That's not my baby to rock 

when a situation arises that is not your problem to address or remedy

Friend 1: (late at night) Tito just got dumped and needs a place to stay for a few nights.

Friend 2: That's not my baby to rock. Sucka.

Or

G/F: I didn't cum
B/F: That's not my baby to rock.

That's not my baby to rock by Red Mongoose March 6, 2011

It’s not rock! It’s pop with heavy guitars!

What someone says about Green Day when they don’t like it.

Guy 2: Green Day is My favorite rock band.

Guy 1: It’s not rock! It’s pop with heavy guitars!

It’s not rock! It’s pop with heavy guitars! by TheHitchhikersGuide2TheGalaxy September 14, 2020