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A teenager who emits an aura of obnoxiousness. Also typically picks fights and looses and always talks back to people of authority. Looks like a rodent.
I actually hate that ratboi in 3rd period. He's so stupid
by Boitho October 08, 2017
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2
a group of three scottish girls who are absolutely mental.
“ratbois a huv tae rant”
“come for a mad sesh ratbois”
“go oan the ratbois group chat ya fannis”
by ladso6999 June 15, 2018
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3
A ratboi is a type of player in Rainbow Six: Siege who will purposely choose recruit and use the M870 as their primary weapon. Ratboi can be used as a noun, and as an adjective.
I’m going ratboi this round guys.

Get ratboid you bitch-ass nigga.

FFFUUUUUUUCKK A FUCKING NAKED RATBOI, WEARING A SANTA HAT KILLED ME WITH A CANDY CANE AHHHH!!!!!
by Soap O’Dope June 13, 2018
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