to practice, usually a musical insturment. a person does not need to literally be in a shed to 'shed'.

the whale tail is the shape formed when a g-string rides up high over a womans trousers

Stands for “Secondary House Extension for Dads”

To practice music by oneself, usually with special care to be kept from being disturbed. Theoretical etymology: Shortened from the word woodshed, where the idea was in order to not only be alone to concentrate, but to refrain from disturbing other people, one would have to retire to the woodshed to practice.

Slang used to describe a woman's vagina or lady bits.
The term is derived from a misunderstanding English boys had in a tent one night, in Costa Brava, Spain. Since then, the term has took off and is getting used more and more frequently!

A small storage building usually as part as a garden where people store things like the lawn mower and bikes.

Fluttershy's corpse stoage facility.