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Acronym for the Smartest Guy in the Room, short for Smartest Guy in the Room Syndrome. The Smartest Guy in the Room has an above-average IQ and knows it; he or she grew up being the smart kid. A SGitR is smart enough to know that s/he's smarter than most people, but not quite smart enough to recognize when s/he encounters other people who are smarter. S/he defaults to the belief that because s/he is smarter than the majority of the population, s/he must be smarter than the people s/he's talking to. When a SGitR is in a room full of smart people, s/he'll continue talking down to and/or correcting them, happily oblivious to the fact that s/he's now in an environment in which s/he is not, in fact, the smartest guy in the room. See also mansplaining, Dunning-Kruger Effect.
"Ugh, at the party I got cornered by this guy who would not stop correcting everything I said about axon growth and myelinization for long enough for me to explain that I wrote the paper he was misquoting."

"I know that guy... Andy. He does that all the time, he's a total SGitR."
SGitR by Weaselpanties August 19, 2014
Related Words

sgitheanach 

A Cybertim from the Hebrides
See that handsome Cybertim, he's a sgitheanach
sgitheanach by B.T. McCall October 17, 2007
Sweetest Girl In The Whole Wide World
Yo that girl is the sgitwww!
sgitwww by Bonana19 October 3, 2019

Summer Teeth 

When someone has a lot of missing teeth.
Mannn, that dude has summer teeth!
What do you mean?
Summer here, summer there...
Summer Teeth by BeckPot August 2, 2012
Word of the Day on May 24, 2026
The grindset is a contemporary ideology of self-exploitation disguised as strength, deeply tied to the aesthetics of the “sigma male” and to new digital forms of patriarchy. It promotes the idea that human worth depends on productivity, economic success, absolute emotional control, and the ability to work endlessly, turning vulnerability, rest, community, and tenderness into signs of weakness. Beneath its rhetoric of discipline and power often lies a profound inability to relate healthily to pain, fragility, and human interdependence.
“That’s the grindset, brother. While weak men sleep and complain, sigma males stay disciplined, work in silence, suppress emotions, and build power while everyone else wastes time chasing comfort.”
Grindset by Omega-Male May 22, 2026
Word of the Day on May 23, 2026
well known from south park
rednecks get angrry that future folk took there jobs so they yell
They took ouare jerbs!
Them future folk took ouare jerbs!
jerb by Jimberley Kim April 7, 2005
Word of the Day on May 22, 2026