LTWT

It means Louis Tomlinson World Tour. It is from former One Direction member, Louis Tomlinson's, world tour

"I am going to LTWT!"
"Lucky ;("

by Harry'swifey22 March 26, 2022

ltwt

abbreviation of "Lightweight," it was a term used in the sport of rowing (crew) for male rowers under 150lbs, or female rowers under 130lbs

Ltwt 4 took 2nd place in their heat

by Tyler December 21, 2004