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1.
A nickname for a person, typically a girl, who does crazy things and feels no shame. If two rellas are together, there is bound to be twice the insanity, and scandalous acts will take place. The name rella may be shortened to rell, rellie, or beelzebub.
Lamella- "Did you hear about the girl who streaked through the cemetery at midnight?"

Tessa- "No way! She must be a hard ass rella!"
by rella nicole August 31, 2010
 
2.
Slang term describing a discharge of air from the vagina, sounding like flatulence. Pussy fart.
I was hittin it doggie and she produced a rella that scared my boner away
by Rhody Joes September 27, 2010