Mentalleger 

People who calls themselves a Dumbass or an Idiot but is actually very smart.

Person: Dude! You got A+ on all the subjects!
Mentalleger: I know but I am still a Dumbass.
Person: Bruh, stop being such a Mentalleger.

Mentalleger by ComradeJarif December 31, 2021

Mentaller 

More mental than it was before

Damian said "..an egg and brick race on Spoon Lane would be well mentaller than an egg and spoon race on brick lane"

Mentaller by Mikey 456 January 15, 2009