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British saying which means to inform the authorities about someone's misdeeds
Jonathan: Why were the police their Efe? Did u fucking grass on us? If I find out you did I will beat the shit out of you! No one likes a grass
by moonfizzle January 20, 2012
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3
to tell on/tell over/rat out some-one
Jane told Miss Stevens that Toby had smoked weed. By doing this she had GRASSED on him and can now be called a GRASS.
by xrachi-roox November 19, 2006
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4
Short vegetation that grows over large areas, usually green. Grass may vary in lenth, texture, width, and color. Most areas in front of a home are covered with grass.
You can try to smoke that grass, but I bet it won't do anything.
by BlastMaster May 18, 2003
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5
a snitch, some one who tells to police/orthorities on someones dodgey acts.
john is a grass

john grassed me up for stealing mikes phone
by simondodo August 15, 2006
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7
somebody who informs on somebody else, especially to the police or
breaks a friends trust and tells their secrets
The teacher's pet was a grass and told Mrs Smith on me
by esthermay July 01, 2005
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