Someone undesirable, unreliable and that always speaks rubbish.
Hes not turned up for work again today. What a total roaster.
by Mahaki March 13, 2012
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Irish slang, used to refer to a generally a man (but possibly a woman) from a rural area who displays poor etiquette, fashion-sense, table manners and generally backwards behaviour. Common to be poorly groomed. Likes GAA, hates the Brits. Likes black pudding, afraid of public transport.
See that lad wearing the bootcut jeans and brown shoes drinking the pint of cider, what a roaster!
by creamcrackers September 23, 2022
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The appropriate description of defecating on an oven tray which is then placed in the oven on high bake, ideally fan, and with the oven closed, left to roast.
Man, this party sucks. Lets do the Roaster and get the hell outta here!
by Pete Kampas August 17, 2007
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Word used to describe an employee at work when there annoying you.
1. See that girl Judith shes a total roaster

2. Wow stop being a bunch of Roasters (to a group of employees)
by CMax Guy November 7, 2013
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What a nigga look like, when a nigga in a roaster. - Jay-Z, Izzo( H.O.V.A )
by Butter September 8, 2004
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Someone who always can have a way to be able to talk back to the other person talking to them.
Teacher: Today we will watch Treasure Island!!
Roaster:Treasure Island? Sounds like Twaesware Fly Land!!
Class: OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!! YOU JUST GOT ROASTED!!
by Pokemon Dictionaries April 13, 2017
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When you're have sex, and the girl lets one rip across your balls.
I was really nailing this chick last night, but she gave me a nut-roaster.
by The Rev NG8 April 6, 2016
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