A congressional candidate who is typically characterized by fraud and deceit. They tend to exaggerate their own importance to make up for their failures in life. Typically conceited and egomaniacal though often lack a single independent thought of their own.
You see that guy running for congress over there, the one who resembles a chipmunk. He lied about his military and employment record. He's a real M. Grimm.
by The Oakwood September 2, 2010
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the best social studies teacher ever and he is really good at sharing stories and being awesome
YO MR GRIMM! what up bro.
"hey Izzy do u want to here the time where my friend was sucking helium and answered a McDonalds drive-thru order
by FBI OPEN UP February 27, 2019
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A group of two or more highly refined gentlemen for whom the desire for greatness is often overshadowed by the desire for lateness
Man those Brothers Grimm are great, but my god are they late.
by Dictionary Giles January 18, 2015
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the act of having sexual relations with you're friends mother and/or the promiscuous activities of said friend's mother with an entire circle of friends. Often used as a form of antagonizing or punishment.
Lucky son of a gun got the Grimm job last night and came back smiling like an idiot.

If I beat you in this game of halo you're gettin' a Grimm Job
by Herry Ballsack April 13, 2010
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The first major sound change law discovered. It described the shift of stops which occured during the change from Proto-Indo-European to Proto-Germanic. It was first postulated by Friedrich von Schegel in 1806, then by Rasmus Christian Rask in 1818, and finally enunciated in its most famous form by Jakob Grimm in 1822. It is composed of three parts:

1. The shift of voiceless stops to voiceless fricatives, thus p > f, t > th, and k > x.
2. The shift of voiced stops to voiceless stops, thus b > p, d > t, and g > k.
3. The deaspiration of the aspirated stops, thus bh > b, dh > d, and gh > g.

Some exceptions to Grimm's Law exist, most notably those stated by Karl Verner in Verner's law.
Thus through Grimm's Law, PIE petro > PG fethra, PIE wodr > PG watr, ghordho > gard, etc.
by Aristophanes September 17, 2005
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Also known as the three finger Grimm or the Grimm job, is the act of inserting the index, middle and ring finger into said vagina and proceeding to finger blast. Must only be done during the month of October.
He was giving her the Grimm reaper on holloween until she screamed.
by Thebeast2 September 26, 2015
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When you masterbait and sperm comes out onto your dick then some of it gets under the cap of the penis and combines into what is errectoral grimm
by Mikeyxxxxxxxxxxx.memes.org December 22, 2017
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