TLS 

Third lung syndrome.

When, instead of a brain, a person has a third lung in the space where their brain should be. Unfortunatley, this means they have a bigger air capacity, allowing them to talk more, but because they have no brain, they don't have the ability to think through about what they're going to say first.

A common name for somebody with TLS is airhead. Which is ironic because lungs of course breathe in air.

Girl: Stands in pudddle. "OMG! Its like all wet and stuff!'
Guy: '*cough* TLS! *cough*'
Girl: 'Whaat?'

TLS by Ishtar. July 24, 2009

TLS 

commonly known as Team Light Skinned, theres are many restrictions on entry in this elite group.

john: Can I join TLS?

Tom: No bro you're too dark

TLS by lil beebe September 19, 2012

TLS 

TLS stands for talking loud syndrome. if someone talks really loud all the time (or usually ) they have TLS. it is not TALKS loud syndrome. it is TALKING loud syndrome. TLS can be a side effect of headphone syndrome

Dean: hey sarah, why does kaie talk so loud?
Sarah: she has TLS.
Katie: YEAH! I HAVE TLS!!!! A LOT!!!

TLS by justanotherpersonoverhereonud April 12, 2007

TLS 

TLS stands for Tommy Lee Syndrome. That is, that the average tall, super skinny white guy is very well endowed in his manhood.

Girl 1: so, did you sleep with that tall, skinny guy from the bar?

Girl 2: yes, and I was totally thrilled that he suffers from TLS

TLS by Special_K115 August 4, 2009

TLS 

g0d or g0d
One who owns you

TLS is g0d

TLS by Anonymous February 22, 2003

TLS 

faghat, oftens eat count dracula for fun, "They Scrape your teeth"
eEeEKz

TLS by Anonymous September 12, 2003

tls 

see noob

tls by itr February 22, 2003