TTLY 

TTLY means "totally", which is usually used in msn lingo. this is commonly confused with TTYL which means "talk to you later".

no way colin, she's ttly not a biz-natch. she just doen't know anyone.

TTLY by BigRigMerhe February 7, 2008

ttly 

Commonly used on instant messaging, an abbreviation for "totally". Most often misread and mistaken for ttyl.

Jack: r u comin ova later??
Jill: ttly

ttly by smurph September 10, 2008

ttly 

short-form for totally

"Isak is shit."
"ttly."

ttly by pr00t January 16, 2004

TTLY 

short form for cantonese word toh toh lan ye, 多多懒也

lingo for DDLY

direct translation - alot of cock

definition - talk alot of cock

when u hear someone boasting, he's definitely TTLY a lot.

TTLY by im3zero August 2, 2012