The use of acronyms in everyday conversation. Taken from the instant messaging chat speak way of communicating.
Teacher: "I'd like you to do your presentation first please"
Student: "N.T.Y."

This student is saying "No Thank You" using Acronym Chat (AC)

However 'lol' is usually said "lllolll" rather than L.O.L so would not classify as an AC.
by Natreeba November 30, 2008
Get the Acronym Chat (AC) mug.
Help for desperate paranoid parents who don´t feel having enough control on their kids, and who feel lost when they find acronyms like "ftw,” “pyt” and “otp,” when spying on their internet activities.
"Ever wonder what your child is really saying online?
Well now it’s easy to find out with the all new Teen Chat Acronym Decoder!"
by rperazag June 15, 2010
Get the Teen Chat Acronym Decoder mug.