Smooth brain is an insult that refers to an unintelligent person. Supposedly, the intricacy of one's knowledge is represented by the wrinkles on their brain. If their brain is smooth and lacks wrinkles, their knowledge lacks intricacy, and they are therefore stupid.
by GenericGuy3456 May 25, 2024

by Arielsmitty November 7, 2023

by smoothgriminal May 9, 2010

by ArchiStarchy April 12, 2019

Wow that was a huge shit better wipe. .... wipes ass.... looks at toilet paper nothing there. ..... Good to go a Smooth Sailor.
by Murseh8r January 23, 2022

Mitski Lover: Hey u know mitskis song Liquid smooth?
Hater: Ew
Mitski lover: We are not friends anymore
Hater: Ew
Mitski lover: We are not friends anymore
by ivbpiuhveupgvbnhehvoehvoueghvo September 21, 2022

by Anon237 July 8, 2024
