Shelf Cock 

When a guy doesn't get to use his penis anymore either by not wanting to or not being allowed to.

female friend, "I bet he is slaughtering your pussy right now!"
Friend of female friend, "Nah he has a shelf cock. I would love him to plow me but he wants to wait a little while longer"
friend(male), "Maybe you need me to jam you for a while....?"

friend (another male mate) Maybe the idiot is gay, I'd screw you in a heartbeat!"

Shelf Cock by Jenkisani November 12, 2010

self cock block

Self-inflicted cock block by doing or saying something so stupid, cheesy, or inappropriate that you instantly ruin any chance of scoring with the targeted girl. The girl will inevitably laugh at you later with her friends

I self cock blocked myself yesterday by telling a girl if she was a new sandwich at McDonald's she would be called McGorgeous. She spewed her drink in my face.

self cock block by Manduzo March 1, 2009

Self cock block

A self (cock block) is when you are in a sexual situation but your nervousness prevents you from gaining an erection.

Todd: You hook up with that chick we met at that concert yet?
Kyle: I was gonna but I was self cock blocked cause she was (a score)

Self cock block by Foreskingamer69 July 24, 2019

Self Block Cock Block(SBCB) 

A man than manages to block his own cock from getting action as a result of being repulsive and/or having no game.

Guy 1: You get it in last night?

Guy 2:Nah, bro. I had a Self Block Cock Block(SBCB) night.

Self Block Cock Block(SBCB) by CSB Fern April 28, 2012

Cock Shell 

Foreskin. Literally just foreskin.

Bro that’s kinda gay
Why would you even say the word Cock Shell

Cock Shell by |Lame| January 14, 2020

Self Cockscious

The feeling of inadequacy when someone comments on the size of your penis.

When she asked "are you in yet?" it made me feel self cockscious.

Self Cockscious by Sweetnlowho February 10, 2019

Self-cockblocking 

The act of being so stupid that you always ruin every single chance you get at getting laid

Guy1: That guy sucks at getting girls.... Guy2: If only he'd stop self-cockblocking, then just maybe he'd lose his virginity.

Self-cockblocking by Xero _ Manifest October 22, 2010