My SPOON's too big!
why not "muita" as "colher" is feminine?
nop. when "muito" is translated as "very" in English (before adjectives) it's always "muito" for both masculine and feminine adjectives.
Yeah, Paulenrique is correct. "Muita" is incorrect but you may see it used as slang. It usually is a more emphasized "muito" and more often used orally.
"Muito" is an adverb and "muita" is a indefinite pronoum.
Could it be "A minha colher"?
It's also right.