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3.
a large flight of stairs
the elevator was broken so i had to take the staircase all the way to the twelfth floor.
by stair master May 02, 2006
 
1.
A hoe, or tramp. Because boys go up and down her all day.
Ay you know Quesha
Man forget that staircase!!
by ZBeezyupontheeasy February 22, 2008
 
2.
to make out, or hook up, with a barely known person while on a staircase or in a stairwell.
I staircased a guy that I met at the bar.
by Triumphantkoala February 22, 2010