courtesy carol

The hooker you meet at your local patty's diner, who is courteous enough to give you a small fry with a 10 cent BJ.

Bob: "I went to patty's the other day"
Joe: "Oh, did you meet courtesy carol?"
Bob: "Dat bia who butters you up wit a small fry and a 10 cent BJ?"
Joe: "YEAAAAH BOOOOOY!"

Reverse Courtesy Flush

When you find someone else's shit in the toilet and you have to flush before you use it

I got into the stall at the restaurant and had to do a reverse courtesy flush for the guy before me before I could drop my own deuce.

Courtesy Laughter

Courtesy laughter is extended to the boss or someone that believe's they are important any time they say anything that is either remotely funny or not funny at all. Usually heard in board rooms in front of the customer or anyone else that may have influence on project funding.

Boss: "Thanks everybody for coming to the meeting and making me feel important"

Boardroom: "He......he.....he...he...."

Alan (whispering): "Damn, did you hear Jeff? That kiss-ass had the loudest courtesy laughter in the room".

Courtesy Cardboard

Used during a devil's threeway, to prevent the male's genitalia from touching during double penetration, dp. This can be cardboard, linoleum, magazines, or even a newspaper.

Bro 1: Man we should totally dp that skank
Bro 2: Aww shit, I knew I should have brought some courtesy cardboard..
Bro 1: Already ahead of you *reveals a few sheets of butchers paper*

Courtesy lighter

The lighter you are graciously gifted with when the gas station clerk turns around to grab your pack of smokes.

"I got 4 courtesy lighters when I grabbed a pack earlier"

Courtesy Plume

Courtesy Plume is a self-inflicted condition caused by the fecal shower your ass gets when you flush the toilet as a courtesy in the middle of a dump (to be polite).

I was so embarrassed about my shit smelling bad I gave myself a courtesy plume up my ass.

courtesy clog

Clogging the toilet usually of public restroom because of the low-quality toilet paper.

There are two types of courtesy clog:
1) Use an excessive amount of TP each wipe and fill up the bowl
2) Wipe, then unload the the roll into the toilet

You can also courtesy clog if there is no toilet paper, you can do this by shoving a water bottle, plastic bag, ect. down the toilet.

Are you fucking kidding me?? This toilet paper is see through, i'm going to courtesy clog the shit outta this shitter to teach the guy who thought it'd be funny to use Charmin 1 ply in his bathroom a lesson.