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1.
1) A person's personal space; often used to describe when one's personal space is invaded.

2) Refers to the space in which people perform sexual activities; particularly activities pertaining to anal sex.

Goes out to my buddy iKrazy which demanded the second def
-----------1------------

Bro1 - Yo bro your invading my shagspace.
Bro2 - No dude your in my shagspace back up.

-----------2------------

Guy1 - Hey honey wat's goin on?
Lady1 - I WANT YOU IN MY SHAGSPACE NOW!
Guy1 - whoa whoa whoa dinner and a movie first baby!
by Kenny541 July 12, 2009