(diminutive) A (little) bird; a birdling; a child's term for a bird.
Aw, that's a cute little birdie. Is it a budgie?
The completion of a hole one stroke below par.
He scored ten birdies during the tournament.
A shuttlecock.
A man's penis.
An electromagnetic signal generated from within an electronic device.
(usually preceded by "the") A certain rude gesture in some countries, formed with the middle finger.
(usually preceded by "the") A certain rude gesture in some countries, formed with the middle and index fingers.
To score a birdie.
Sörenstam birdied to take the lead.
To score a birdie at (a hole).
Sörenstam birdied the seventeenth hole to take the lead.