TLSI 

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

TLSI 

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

tlsiw

Too long, sorry I watched - Almost like tldw or tldr but much worse. This is the waste of time when you stick with a long, sucky video all the way to the end, hoping for a punchline or some kind of point, but the video just never gets any better.

Clicked on your link to see the Walmart clerk singing the Dolly Parton song, tlsiw.

tlsiw by Linguistic August 4, 2017