thief 

Someone who uses other people's private property without their permission or them knowing it.

A thief would use a friend's computer to post something from his/her facebook account that s/he won't like.

thief by KustacMa September 9, 2011

thief 

Someone who steals from K-Mart

That guy is a thief.
You thief!!!
There is a theif in the house.

thief by Y.E.A December 23, 2007

thief 

When a diamond man named skeppy goes to the store with his family to steal thousands of dollars worth of webkinz and an angry muffin man named badboyhalo who stole a store label doesnt remember the name of the stuffies.

That dog named rat is a thief for stealing my muffin mix!

thief by Honeqi September 12, 2020

thief 

Capitalistic individual who "borrows" other people's stuff and "pawns" them. Takes whatever opportunity to gain currency, no matter what ethical barriers stand in the way. Often screws all those close to him in his bid for cash. Is fairly smart, but his kleptomania gets the better of him. Best seen in the 8-bit theater webcomics.

Your GP or your HP!~8-bit theater episode 4

I feel it neccessary to inform you that the contract gives me rights to the bottom half of your treasures ~8-bit theater episode: thief likes money.

thief by Pyros April 22, 2004

thief 

1. a person that steals
2. character class in ffxi that is totally gimped after level 60

Prrrowla quit playing as a thief cause he never got invited to parties.

thief by sammy zipdisk January 4, 2005

thief 

One who steals co-workers sales in a supposed "friendly" work environment

Sean was helping a customer when he left to go check the inventory of a shoe, when the evil Vicki stepped in and stole his sale. This resulted in Sean losing a $104 sale and the commissions that went along with said sale!! THIEF!

thief by SEANATHON11 August 3, 2007

thief 

DJ whats his name... That kid who always steal the mouse balls from the school computers, but then is so stupid at doing it that he actually gets caught.

DJ you dumbass, you actually got caught stealing a 1 inch rubber ball

thief by Itto Manji December 19, 2003