prankster (n.)
- banana
- booger
- buffoon
- bugger
- caricaturist
- clown
- comedian
- comic
- devil
- elf
- gagman
- gagster
- hood
- hoodlum
- hooligan
- humorist
- imp
- ironist
- jester
- joker
- jokester
- knave
- lampooner
- madcap
- minx
- mischief
- mischief-maker
- parodist
- pixie
- puck
- punster
- rapscallion
- rascal
- rogue
- rowdy
- ruffian
- satirist
- scamp
- scapegrace
- wag
- wit
- zany