When your voice suddenly goes high pitched unintentionally, often during puberty.

A miniature Foxhound, solid and big for his inches, with the wear-and-tear look of the hound that can last in the chase and follow his quarry to the death.
Usually stand no more than fifteen inches to the shoulder.

OR

A talisman of British ineptness at space exploration... currently a probe lying in zillions of pieces on the surface of Mars.

A Homosapien of the female variety, native particularly to Sydney, Australia, but found in all big cities, that possesses a sniffer-dog like ability to ascertain who is in possession of Cocaine. Never carries the drug herself, but is more than willing to consume that which is carried by others. Often found congregating with other beagles.

a true hustler. he hunts fish down and retrieves them cuz thats where the food is at.

A beautiful hound dog that beaglefuckers make love to

The Beagle is a pseudonym for a fully shaved or waxed lady, originally termed the 'Bald Eagle'. For use in public places when discussing the events of the night

(-verb)
To be investigated for the scent of illicit substances by a canine, specifically of the Beagle breed (used in Australian airports). (Past tense: 'Beagled')