SIS
Secret Internet Shorty, an acronym used to describe pictures of a guys dick but using angles or photoshop to make appear significantly bigger than it really is.
SIS by IamIwhoIam August 20, 2011
SIS
Due to the vast majority of lies which happens every time a person types 'LOL' in texting or the internet, SIS (Smile in Silence) is a much more proper use in times when one does not actually laugh when typing 'LOL'. Though, this may suggest that the person is not as fun as he did not actually laugh.
A: Yo, B, I just tried walking thru at a drive thru.
B: LOL, what happened?
A: B, stop lying bro, don't tell me you actually laughed at that message. SIS
B: Jeez, such a stickler...So what happened?
A: They told me that they only viewed car owners as acceptable customers.
B: SIS
B: LOL, what happened?
A: B, stop lying bro, don't tell me you actually laughed at that message. SIS
B: Jeez, such a stickler...So what happened?
A: They told me that they only viewed car owners as acceptable customers.
B: SIS
SIS by Shinigami Prophet July 10, 2014
Sis
Sis by Mandagrace99 November 24, 2018
Sis
A word basic bitches use to get a point across.
It’s the most cringe worthy word that can be used and should be illegal in every way.
It’s the most cringe worthy word that can be used and should be illegal in every way.
Sis by Shanosthetranos July 6, 2020