RossTard 

A seemly normal person that is actually retarded. Usually seems normal until they start to talk, they you realize they are actually Rosstarded.

Often hard to tell apart from normal people, but if you hang around them long enough you can see there is something wrong with them.

That guy seemed so normal till he started responded to questions in all random movie quotes, none of it made sense. I think he is a RossTard.

RossTard by mrp123 July 6, 2009

ROSSTARD 

Some one who is so bad at squash you may think that person is retarded

man you lost 10 - 0 your such a Rosstard

ROSSTARD by randomrick June 24, 2011

russtard 

contraction of russian and retard. commonly seen in csgo.
doesn't want to speak english
unpurposely a troll
"rash B"
"cyka blyat"

i can't play this game anymore, too many russtards

russtard by poulipuur February 10, 2017

Roastard 

A person who retardedly says "roasted" all the time.

Me: Jeez this burger really sucks...
12 year old kid: Your mom sucks too, but she charges! Ooh! Roasted!
Me: this guy is a roastard

Roastard by cripplesauce October 1, 2017

Rosstarded 

When you screenshot a meme on instagram but are so bad at memes that you refuse to crop it.

You're Rosstarded.

Rosstarded by Dahou January 4, 2020