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2.
This word is simply banana only with an extra 'na', making it one of the coolest words in the world.

Bananana.
"Omg dude take a bite of my bananana!"

"Wtf you fag!"
by Jamie March 17, 2005
 
1.
What happens when you try to spell banana, but get confused.
"Alright, bana. Keep on going. Bananana. FUCK!"
by talley September 03, 2006
 
3.
A ripe banana, good banana. Your Grandpa likes it. And you Sister likes it. From the left to the right.
"Hey, do you know the banana song from Yo Gabba Gabba?"
"Yeah...From the left to the right, bananana! North to South, bananana! South to East, bananana!"
by PrncesJessie September 13, 2008