costello 

One of the best surnames going. Belonging only to those who are deemed by god the sexiest people in existence.

OMG - is that a costello?

costello by johnny smith-face March 24, 2009

costello 

someone who is very immature and sarcastic at times, but ultimately funny in being so. This person also has sadistic ways of going about things, but can be very serious about certain things. Costellos always push people to do their best. They are also very soft on the inside, and may disguise liking you in forms of teasing and sarcastic comments. All in all, Costello's are very beneficial to have in your life if you know their rules and play by them.

My swim coach is such a costello, but he's the best coach I've ever had.

costello by someswimmer333 April 4, 2009

Costello 

The innate desire to take over the world with sick and/or humorous plans.

"Jason has a serious costello... he is demented. Its all about power with that guy"

Costello by Xondak July 8, 2006

Costello 

See also Obsessed, Fanatic, Zealot, Cult Classic and Cult Movie
Someone who is completely obsessed with some sort of cult fiction (Example: Lost, WoW, Star Trek, Napoleon Dynamite, Family Guy, Halo, Star Wars, Pokemon etc)

Guy: "Man, Chris is really into Lost"
Girl: "Yeah, like he is Costelloed to it"
Guy: "That's pretty strong to say he's Costelloed"
Girl: "Well, he spends hours researching all the literature associated with it"
Guy: "You're right, he is a total Lost Costello"

Costello by [<ABSENT>prodigy] July 8, 2006

Costello 

One whom is hot and very sexually attractive. Usually those who call others Pretty boy

Johnathan, you are such a Costello. I wish I could of been as good looking as you are.

Costello by londontiger23 June 26, 2023

Costello 

Your go to mid if you’re looking for to protect your pockets! Ranked NUMBER ONE MID - THREE CONSECUTIVE YEARS IN A ROW

Just use Costello’s drop bro
Should’ve loaded Costello but instead you got headache

Shout Costello he’s always Gara side regardless

Costello by Vision eye January 9, 2024

Costello Clapp 

A Costello Clapp is when after coitus, instead of cumming in or on your partner, you cum into your hand and proceed to smack them in the face with the handful of cum.

After I was done having sex with Melyssa, I costello clapped her across the face.

Costello Clapp by Josh Doane June 25, 2006