TND

TND is an acronym for "Totally Nice Day", and "Tuesday Night Drinks".

It's also an abbreviation for "Total Nigger Death", an old 4chan copypasta originated from (You guessed it!) /pol/. It has been adopted by soyteens to have a common slang. Some leftist fags derived "Total Nazi Death" from it, but this didn't change its origin as a hecking far-right cathorn.