Some slang terms for arsonist are firebug, torch, and pyro.
Here are some slang terms for potatoes:SpudsTatersMurphyTots
In British slang to act as a police informer, also someone who complains irritatingly. In Australia to annoy or upset or nag
fine
The slang terms I'm familiar with are: P.I. Private Eye, Peeper and Dick
Here are some examples:CarJalopyFlivverRide
bucksgreenbacks bills
shela
Hoops, bangs
Angel dust
Fabu. or Fab.
Some slang terms for suicide include "offing oneself," "taking one's life," "dropping out," and "doing oneself in."