The action of locking the top bolt (contractor's lock) to prevent entrance of room mates and/or other uninvited guests whilst "flickin/jackin it" on your lunch break. Not doing so could result in either the awkward "OMG! YOU SAW MY JUNK!" or the always plainful blue bean/blue balls (see Blue Bean)
"Thank sweet baby Jesus i was top bolting whenever Christa came home or she would have walked in on me right as i was about to bleach the sheets!"
by Shae Baby July 12, 2008