woodstock

As a noun weathercock

is a weather vane, sometimes in the form of a cockerel.

As a verb weathercock

is to turn upwind because of the difference in water pressure on two sides.

As a proper noun Woodstock is

Woodstock Festival, an American rock music festival originally performed in 1969 in New York state.

As proper nouns the difference between snoopy and woodstock

is that snoopy is charlie Brown's pet beagle in the comic strip Peanuts, by Charles M. Schulz; often representing doggish soulfulness while Woodstock is Woodstock Festival, an American rock music festival originally performed in 1969 in New York state.

As an adjective snoopy

is given to snooping.