Verb To tell someone you will
do something for them or give them something. Then to callously retract your offer
after the person is sure that you're doing something for them.Usually retracted after a long period of time the minimum is 3 hours.
Of course the amount of time depends on the person level of dickery.
Brian: Hey so Jeff
I don't mind giving you a ride home !
Jeff:
Thanks man, you really saved me there, I would've had to wait until 8 to get home.
3 hours later
Brian: I can't give you a ride home, sorry for the
confusion.
Jeff: I can't believe you vassared me