Microterrorist is well, a microterrorist.
Kacchussy is uh..... the fandom term for a certain part of Katsuki Bakugo from My Hero Academia.
Dih fiddler means a
person who touches other
people's...penises, usualy penises.
L rizz means negative rizz no charisma
So it basically means "You
don't get the girl" but the more literal translation is "You are a perverted terrorist that commits felonies and no one wants to sleep with you."