Top Definition
The gap between a female's legs that must continue from the ground all the way up to their crotch. If their thighs touch together, they ultimately lack this nonpareil phenomenon.
1) I'm not eating while sedentary again until I have back ribs and tapspace.

2) That's Mary-Kate because her tapspace is so much more defined than Ashley.
by sillyhollis May 27, 2011
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