smi

sick minded individual

that person over there is a right smi look wat hes duin 2 that dog

by Nicole Hudson June 10, 2006

smi

the sound an insect makes when it hits the windscreen

zzzzzzzzzzzzzz ... smi!

by reas October 21, 2003

smi

Severely mentally impaired. Someone who is retarded as shit and can help it.

what are you doin' smi? Hot carls go on another person, not yourself

by john schlongo August 23, 2003

SMIS

: a school which has a bad middle school principal and becomes gay when in Middle School.

We are a group of SMIS.

by REI. H March 11, 2019

Smi

A word used to describe the loading/percentage of something, particularly 18%

Everyone laughed at him because he only got a low smi of the votes.

by Clone xoxo June 20, 2011

SMI

Seriously Mentally Ill, a legal classification in the state of Arizona, referring to a class of individuals who meet certain psychiatric diagnostic and functional criteria.

This person is enrolled in SMI services.

The state legislature is considering additional SMI funding.

by Arizona Jaguar November 26, 2006

Smis

Smis is the word for smudding and pissing at the same time from your penis/vagina depending.

Dude I just smissed all over teh toilet seat.

Fuck that.

by greatbigflumpkin October 6, 2008