In the direction of or anywhere outside the house.
I'll wait for you outstairs.
by ultrabutter February 24, 2010
The place you sit when you live in a small town in rural Idaho with nothing better to do.
"Where you wanna go eat man?" "outstairs"
by pddelaposeph October 31, 2011
Outside, where stairs have to be, so must be on a higher level than ground (like a fireescape i.e.). Short Form for outside at the stairs also.
Ok, let's go and smoke outstairs (appartement with fireescape i.e. 5th Floor)
by Lunafeles May 21, 2010