An individual who is so clueless, reckless, stupid, or careless, that it's only a matter of time before they cause serious harm to themselves or someone around them.
Whenever you see a Toyota Corolla with it's back bumper taped together with duck tape pressed on half ass, and the front bumper straight up gone, it's a pretty safe bet that they're a ticking time bomb and they're a terrible driver who needs to be avoided at all costs.
Consist of placing a piece of raw chicken and buttermilk in a mason jar or an empty baby food jar. Make sure to close it up tight. Used as revenge and placed in the targets home, car or office. After a few days the concoction will ferment, break the jar and emit the most foul smell one can imagine. Best if used after one breaks up with a significant other or gets fired from a job.
Uncooked Shrimp can be substituted for chicken in which it becomes a Shrimp Time Bomb or both can be combined for maximum stench.
C-Dawg: He Lil' Dude, why haven't you been at work?
Lil' Dude: Man they fired me, said I was on UrbanDictionary.com too much.
C-Dawg: That sucks!
Lil' Dude: Don't worry, I'll get my revenge, I left a Chicken Time Bomb in the breakroom.