Si Fu

Used to describe someone who is a master at something.

Wow you're so great si fu!

by Anonymous November 7, 2003

Si papi

Si papi is used during sex, oral or anal (doesn't matter). It means yes daddy.

Girl: Si papi!
Guy: Yea, you like that

by Fuck me mommy February 6, 2018

si zheng

A word used to define a person who looks like a penis. It can also be used as dick head.

His head is looks like a si zheng.

"Why are you such a si zheng?"

by MagicCups4Lyfe December 26, 2013

Si mi Tia tuviera ruedas, sería Una bicicleta

Translation: If my aunt had wheels, she would be a bicycle

Used in response to someone saying lots of hypotheticals

Person 1: "Si estuviera presidente..." (If I were president...)
Person 2: "Y si mi Tia tuviera ruedas, sería una bicicleta " (And if my aunt had wheels, she would be a bicycle)

by Drmakneeo November 16, 2014

SI TARP

Some retarded bullshit "phrase" used by the idiots that populate the Random Nonsense forum on the Day of Defeat official website. It makes absolutely no sense and is beyond retarded. Using 'si' instead of 'is', is no longer funny. It became unfunny after JeffK's popularity died out 3 years ago. Please stop emulating him. It's really, really dumb. Thanks.

si tarp!! lolol! i'm an unfunny faggot with an extremely undersized penis! help!!!!

by KYX! February 6, 2003

Si BadGui

The personification of awesomeness.

Si BadGui is awesome, we should give him money or TACOS

by BadGui June 20, 2007

si-si

a philosopher of sorts. looks into a mirror and will see many reflections.

resembles a chilly philly dip; sweet and TANGY.

yo i'm si-si. LIKE A DAISEY! give me shit and i'll shit on your face. verbal diarrhoea type shit.

by lawren August 2, 2006