TNTLOL 

Trying not to laugh out loud.

Used when you are up late at night while people in your house are trying to sleep and you do not want to disturb them.
Also used in other quiet circumstances where you do not want to be heard laughing out loud. Examples include churches, funerals, weddings, serious speeches, award ceremonies, plays, performances, etc.

If an emoticon is necessary, one may use :8x
(the 8 is the cheeks)

HAHA omg I'm editing this person's face into this photo and it totally does not fit in omg. how to make someone look like an obese fish. omg tntlol

TNTLOL by obese_fish January 17, 2011

tntllac 

TNTLLAC, or "Try Not To Look Like A Cock" is used much in the same way as "good luck" or "try not to fuck it up".

Example 1:
Son: Okay mom, I'm ready for my first day of school! Love you, bye!
Mom: Have fun, TNTLLAC!
Example 2:

Astronaut: Mission control, we are ready for landing.

Mission Control: TNTLLAC lol.

tntllac by Skraamelyr September 13, 2018