To suddenly cancel a very important event without direct communication. Cancellation is usually done via emails, text messages, or other impersonal means. This action of andrewing is usually credited to fear; the subject may fear the date of the event and this leads to the cancellation; the poor indirect means of cancellation demonstrates that the person who performs such an act is a "pussy" (urban dictionary that)
A: OMG Tom and I were so supposed to hook up on Friday
A: Yeah until he *andrewed* me
I: How'd he do it?
A: email *rolls eyes*
I: Typical....well I guess it'll just be you and your flask tonight