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The Lounge Sounds No. Used to show when the consensus agrees to a negative response to a question. Basically, everyone collectively shouting back "NO!" in retort.
Should I attempt to hook up with my psycho ex while trying meth at the same time?
TLSN!
TLSN by Rold Gold July 9, 2005
Related Words
tls TLS Greekgod TLSI tlsr TLS night TLS Syndrome tlsc tlsiw tlsmyfriend TLSN
Acronym for "testicle, left, suck it." Both the acronym and the statement itself should be used as a response similar to "suck my dick." If the full statement is used, it must be said slowly and with distinct pauses between each comma.
Nate: Yo, Jamal! You see all dem bitches I was wit last night?
Jamal: TLSI, Nate. TLSI.
TLSI by WilliamForrester August 27, 2011
An acronym for "The Latest Shiny Thing".

Used condescendingly to mock web developers who blindly follow the latest trends: frameworks, languages, tools, etc. without doing substantial research on said trends.
Webtard: Hey, did you hear about the new Javascript framework "fucktard.js"?
Other dude: Oh, is that TLST?
Webtard: Oi fuck off, it's totally web 3.0!
TLST by moon² October 12, 2015
Too late seen it. often used online when someone links you to an image what you've already seen.
Guy1 "Hey dude check out this cool image"
guy2 "TLSI"
TLSI by Jezaroo_666 January 20, 2008
I feel like crap and in need of some tlsc.
tlsc by ItalianPrincess January 24, 2016

tlsmyfriend 

Tlsmyfriend is a cool guy called Theo he is handsome, friendly, caring,awesome and even more awesome because of hos swag yeah thats right woohoo!!😊
Daaim tlsmyfriend how ya doin?
tlsmyfriend by tlsmyfriend December 11, 2016