Si

Is an abbreviation for Stupid Idiot, not to be confused with a nickname for someone called Simon.

You fucking Si; get 'ere now you Si

Si

the kinda deals that make you boogie

Si

SI

Sick Invite ( thank you for the non-invite )

You went for sushi!! SI (sick invite)

SI

In fanfiction, an acronym for self insert

He wrote a Pokémon SI story

Si

When you have no idea what the fuck your Spanish teacher is talking about.

: ¿Más preguntas?
: Si
:¿Cuál es la pregunta?
:Si

wills sis

Someone that will has fucked

Yo wills sis how’s your brother doing in jail

Yaba daba si si, i dont wanna be be another fut a tee tee, cuz ayeee oh i.

When ur hella excited for something so u say: Yaba daba si si, i dont wanna be be another fut a tee tee, cuz ayeee oh i.

Lezz goo Yaba daba si si, i dont wanna be be another fut a tee tee, cuz ayeee oh i.