look up any word, like wyd:
a good blowjob; head
damn that bitch gives a sweet j.
by Growcock October 18, 2007
Sweetj is a geocacher who notoriously hides impossibly hard caches. it means that something is difficult or hard, usually in a geocaching context. check www.geocaching.com for more info
That's a sweetj of a cache, or, that's as hard as finding a sweetj.
usually used as an exclamation!
by Enbay1 March 03, 2010