A term used to express approval, especially to the point of expressing a person's sex appeal; often used sarcastically

Expression used to show interest or appeal in ones sexual appearance.

The phrase "I'd tap that" is slang, used to express the sex appeal of another. Often this phrase is used sarcastically, when the referenced chick is beat (ugly).

When someone sees a nice refreshing river, they say "I'd tap that", meaning, they'd like to put a plumbing system in and "tap" the water supply.

a phrase meaning you like something or someone.

when someone uses it to joke around, or when someone likes what they see, they say i'd tap that as in that'd like to be with that person. not any sexual intercourse.