What is TLC?

I thought it was two lesbians cuddling

The official site for TLC, The Learning Channel
tlc.discovery.com

Tender Loving Caring

Totally Lame Calculus :)

Well, it's either 'Tender Love and Care' or 'Tables, Ladders and Chairs' depending on whether or not it's outside the WWE.

Total Logistic Control

Tender Loving Care, often used to distinguish between physical care (e.g. medical care) and care in the reassurance and companionship sense.

The biggest selling female group in music history. Selling millions upon millions of albums and singles. TLC stands for T-Boz, Left Eye, & Chilli. With the successful release of their debut album

T - T-Boz, L - Left Eye (Lisa Lopez), C - Chilli

TV channel originally meant to be about learning, hence the name "The Learning Channel." However it now is constituted almost entirely of home decoration shows, makeover shows, etc.

Turnpike Lane Crew. Gang who stands outside Turnpike Lane underground station in London all day mugging little boys.

Tylenol, liquids & crackers: hangover cure.

Tight little coochie.

Tender Lesbian Cooch.

http://www.urbandictionary.com/define.php?term=TLC

Tables, Ladders and Chairs (oh my!).
A form of professional wrestling involving very little in the way of rules, but involving lots of tables ladders and chairs.