Top Definition
A girl who gives great head

Possible Etymology: Having attended an elegant BSO concert the day before, the felicitous R Carroll hit upon the phrase while attempting to describe to his friends an experience enabled by Twitter.
Babe you are a fucking fellatioso.
#cotton-mouth #drymouth #teeth #bites #fallacious
by thetenderhammer June 08, 2009
5 Words related to fellatioso
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