Chatspeak/most acronyms
The sound of a metal knife or fork against a glass plate; worse than nails on a chalkboard
Try-hards like my sister's fiance. Be genuine, be you.
Papaya, smells like poo and when I worked in a grocery store I thought I stepped in dog doodie, checked my shoes but turned around and saw I was standing in front of the papayas.
Bad grammar
People who ask for an explanation to something and don't bother to listen.