maching
A loud, high-pitched noise. Also used by Mrs. Kelly when she thinks she’s awesome. Sounds like a cat being hit by a truck.
"He yelled ‘Mach!’ so loud, it scared my dog.", Emily, who’s not scared
"Mrs. Kelly did a Mach and I failed my math test.", Ryan, who’s scared now
"I did a Mach in the hallway and got detention.", Alex, who’s now a Mach expert