short for "details", usually details of gossip

the thing that you don’t have when you’re phones percentage is over 20

Stolen Credit Card details, bank cards etc.

Short for details...

DEET is the chemical found in insect repellents. DEET is also called N,N-Diethyl-meta-toluamide, or diethyltoluamide. It is a slightly yellow oil intended to be applied to the skin or to clothing and provides protection against mosquitoes, ticks, fleas, chiggers, leeches and many biting insects. You spray it on your arms and legs and get a few hours of protection. Mosquito bites are itchy and sometimes carry West Nile Virus

An abreviation for the word details. Typically used in casual email conversations. Not so much in the real due to the lameness of using slang in speech.