1 definition by Johnny Skeets

Top Definition
SI
Socially Inept.

Seen in episode 13 of "Rugrats: All Grown Up"
"Lil, your brother is what he called SI, you know, socially INEPT"
by Johnny Skeets May 29, 2005

11 41
Mug icon
Buy a SI mug!
© 1999-2021 Urban Dictionary ®
advertise   terms of service
privacy   dmca   remove   help
© 1999-2021 Urban Dictionary ®
advertise   terms of service
privacy   dmca   remove   help