fire hand 

Fire hand is when a person has capsaicin oil on their hand(s) then proceeds to use that hand for manual stimulation of genitals.

He made a dinner with plentiful jalepenos, then proceeded to finger his girlfriend after eating. The fire hand burned brightly, but the couple fought through the sting.

fire hand by Slade_TK December 9, 2018

fire hand trend 

when people put alcohol, hand sanitizer, or something flammable on their hand and light it on fire

Hey bro, you gonna do the fire hand trend

are you crazy? defo not

fire hand trend by you_;) October 27, 2023

Firehand 

The act of spraying deodorant into your hand, while clenched as a slightly loose fist, and igniting it, resulting in a flame engulfed hand. Often accompanied by the high pitched chant "firehand!".

"Firehand, firehand, firehand!"

Firehand by Sandy Excalibur December 30, 2007