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1.
Something that is completly impossible to do and defies the laws of science. Something that is unthinkable to be able to happen.

basically - USED TO DESCRIBE SOMETHING THAT CAN'T BE DONE!!
Man 1 'Im gonna drive my car on water'
Man 2 ' Are u kiddin dude? that's like chewing water'

Man 1 'Im gonna rent a plane and fly and land on mars'
Man 2 ' U gotta be crazy..that's like chewing water'
by LingoLover August 24, 2009

Words related to that's like chewing water

chewing impossible science unthinkable water