Associations to the word «Sis»

Wiktionary

SIS, noun. (informal) Shortened form of sister.
SIS BOOM BAH, interjection. An exclamation of encouragement
SIS BOOM BAH, interjection. (dated) The characteristic sound made by a firecracker.

Dictionary definition

SIS, noun. A female person who has the same parents as another person; "my sister married a musician".

Wise words

Every once in a while, you let a word or phrase out and you want to catch it and bring it back. You can't do that. It's gone, gone forever.
Dan Quayle