Scottish slang. Can be used to describe someone who is making a complete cunt of themselves. Once hearing being called this they should shut their trap (mouth)
"Hear, did you see that roaster oan x-factor the other night?"

"Shut yer puss ya roaster"
by glaswegian_slang#1 May 9, 2009
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this one is hard to define. 90's scottish school word. If someone is a bit sad or just plain roasting! Very laughable. Nothing to do with heat I might add.
He or she is roastin'!
What a roaster!
Also see scadder or boiler.
by Kelly Coyle December 3, 2003
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Google defines roaster as:

1) a harsh or humorous critic (sometimes intended as a facetious compliment)
2) a cook who roasts food
3) flesh of a large young chicken over 3 1/2 lb suitable for roasting
4) a special cooking pan for roasting
1) "the honoree gave his roasters as good as he got"
by Jimmybone D March 16, 2009
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The name for those of us who belong to no current social group, such as Gangster, Goth, Rude boy, Hippy, etc.
Not a Gangster, Goth, Rude boy or Hippy.

by Joseph August 15, 2004
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An old man (or someone older than you) who is a bit of a pervert
You are walking through carnival in barely any clothes. A desperate guy comes over trying to get involved
'easy you roaster'
by littlemissdebz August 11, 2010
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Anything that's hot might be referred to as a roaster. A proper curb cut may be referred to as a "roaster".
"hey man I hit that roaster coming down the hill, it was dialed."

"Dude, you got a roaster."
by nigglet4 July 10, 2006
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A girl or woman who is hot. A play on "hottie", but a roaster is slightly hotter than the average hottie. To "roast" is to be a hottie.
Whoa, check her out---she's a real roaster!" Also as a verb: "she roasts!"
by witchdoc64 April 2, 2011
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