tsaaaaaaaa, usually said in an almost whisper, can be used as a "burn," an angry exclamation, a substitute for "TCHYEAH!", a sound you make before saying a word with a "saw" sound in it, or just a thing you say in the dark to scare people.
this word is copyrighted by meredith mcallister.
this word's a's and s's can be lengthened or shortened, depending on the disposition of which you're in while saying it.
"your mom is so ugly she went into a haunted house and came out with an application....TSAAAAAAAA!"
"TSAAAAAAAAA I'M SO MAD!!!"
"tsssaaa i'm going to the movies tonight, are you?!"
"please pass me the tssaaaalt."