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1.
1. An adjective meaning very good or interesting. Instead of saying cool, say jovian.

2. In relation to Jupiter.
1. NYC is totally jovian.

2. Jovian moons are constantly being discovered.
by lebosi March 23, 2006
 
2.
A Whalley Wigger, straight outta Surrey who is inspired by k-feds wangsta boo life style.
As we were driving to the mall we noticed a jovian coming out of the Guildford Walmart, wearing gangta boo chains straight from the dollar max.
by jahovians witness January 20, 2007
 
3.
Line of coke or 'fix'
'pick up a jovian', 'get me a jovian', 'i did a jovian'
by phobia January 10, 2005