short-sheet

[ shawrt-sheet ]
/ ˈʃɔrtˌʃit /

verb (used with object)

to fold and tuck in the top sheet of (a bed) so that it simulates both the top and bottom sheets: when the victim of this joke enters the bed, his or her legs are obstructed by the fold.
to short-sheet the bed of (someone).
Compare apple-pie bed.