look up any word, like the eiffel tower:
 
1.
Used to show retardedness
Errt lets go robo roll Randy.
by Benhameen May 24, 2007
 
2.
once meant to show retardedness, now a way of saying hello to a friend.
person 1: errt!

person 2: errt brahh, wassup?
by Agent Vook November 21, 2010
 
3.
A statement implying irritation or indifference to an idea. Generally used by itself in response to an Idea or to express ones self to be aggravated.Originated in East Texas by a girl known as "Puddin'"
Hey wanna go to Wal-Mart?
(Response) Errt.
by Andy Taylor July 11, 2005