Blue Back 

When you take a shit in a port-a-let and the blue chemical water splashes back up on you staining your ass and your back.

Dude, hitting the port-a-let for a quick dump...

Make sure you hop up quick so you don't get Blue Back!

Bobby was scrubbing his ass cuz he got Blue Back at the State Fair...

Blue Back by B. Hanback September 9, 2009

Blue Back 

The frustration experienced as a result of a backrub stopped too soon, especially when the backrub giver never intended to follow through with the backrub in the first place. A phenomenon similar to, but less severe than, blue balls.

She rubbed my shoulders for about three seconds then just laughed and walked away. Now I've got blue back.

Blue Back by snaptastic February 16, 2010

blue back 

When someone starts to give you a backrub, then leaves abruptly, leaving you unsatisfied.

"Mike was giving me the best backrub, and then he just left in the middle! Total blue back."

blue back by Jacketman89 February 16, 2010

peel his muffin cap back blue 

the art or cutting a mans dickhead off, preferable with a prison shank seeing how that where this saying came from

peel his muffin cap back blue
peel this motherfuckers muffin cap back blue.

o

peel his muffin cap back blue by smoke weed till ur lungz bleed July 7, 2011

Blue Balls Back Rub

An extended, often elaborate array of male-on-female foreplay that fails to end in copulation. The common opening move is for the man to offer the woman a back rub, followed by a series of maneuvers that may or may not include a leg massage, teasing of the upper ass around the pantyline, a slight grazing of the sideboob, and as a last resort some aggressively handsy spooning. Crippling, fetal-position blue balls often results, remedied only by vigorous, albeit lonely and pathetic masturbation.

"You get some from the old lady last night?"

"Nope. Nothing but a blue balls back rub."

Blue Balls Back Rub by Bart County Scrivener January 27, 2015

cap back blue

It means to peel someone's cap back....as in take their fucking head off in a fight.

Do you want me to peel that nights cap back blue

cap back blue by Can't get right! June 1, 2017

Peel his muffin cap back blue 

The act of performing a right hook punch to someones forehead until it breaks the skin causing massive swelling to the to the head, giving the victim the appearance of having a muffin for an upper skull.

"There's no way those two Nigerians would have let him survive a fight, they would peel his muffin cap back blue!"

Peel his muffin cap back blue by Andromeda Delux February 20, 2019