1) Someone or something bitchy.
2) Something cool, tight, or sweet. Can be used in place of words like Awesome, or phrases like off the chain.
1) Girl 1: Have you talked to Mandy lately?
Girl 2: She was a complete piranhaise to me all day!

2) Dude 1: Check out my sweet new mustang bro.
Dude 2: Piranhaise!
by M-Sizzle March 6, 2007
Get the Piranhaise mug.
1) Someone or something bitchy.
2) Something cool, tight, or sweet. Can be used in place of words like Awesome, or phrases like off the chain.
1) Girl 1: Have you talked to Mandy lately?
Girl 2: She was a complete piranhaise to me all day!

2) Dude 1: Check out my sweet new mustang bro.
Dude 2: Piranhaise!
by M-Sizzle March 6, 2007
Get the Piranhaise mug.