by AGP819 January 24, 2020
an intellectual state in which one is of well below average intelligence.
100% of the time, the mentally fat person is completely unaware of their intellectual condition.
Note: Physically attractive people can most certainly (and often times are) mentally fat.
100% of the time, the mentally fat person is completely unaware of their intellectual condition.
Note: Physically attractive people can most certainly (and often times are) mentally fat.
Man, she was so hot but seriously, that girl is so goddamn mentally fat I could not stand another second in her presence.
by Brian Adelman May 2, 2010
A term that can be used to describe someone who is lazy, or even just stingy. A person who hogs all of their food, even if a starving person asks politely.
Wyatt: "I didn't have any breakfast, and Spencer is being Mentally Fat."
Spencer: "I'm not fat!"
Wyatt: "I said you were Mentally Fat!"
Spencer: "I'm not fat!"
Wyatt: "I said you were Mentally Fat!"
by Adumb50 May 13, 2010