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 ;("
"Lucky ;("
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