Wiktionary
vb. 1 To close with a zip fastener. 2 (context idiomatic transitive or intransitive English) To close as if with a zip fastener. 3 To convert a computer file into a smaller package.
WordNet
Usage examples of "zip up".
I zip up and wedge myself between her and the sink and wash my hands.
Moving towards her, Rupert pushed the newly washed hair aside and pulled the narrow gold zip up to the nape of the neck.
Sam half-caught it as she struggled with her jeans, lying flat on the floor to pull the zip up.
He didn't have time to zip up before his secretary reached the door.
Unable to find his kit, he was wearing boots that wouldn't zip up, borrowed knee-pads and a too-large hat which kept falling over his perfect nose and which did nothing to deflect a white-hot sun from his murderous headache.
A treacherous, icy wind seemed to dart around from every angle and then zip up sleeves and pant legs.
Just digs down into his sleeping bag and pulls the zip up, lies down and turns away from me.
A shot through midtown and a quick zip up Park would have been quicker, but she would have been treated to the droning recitation of New York's attractions, the history and tradition of Broadway, the brilliance of museums, the variety of shops -- and the plug for the blimp's own gift emporium.
Pausing to zip up his leather jacket, Kincaid looked around to orient himself then ch'mbed into an unmarked car with Cage and another young agent or officer, an earnest man in a trench coat.