rough up
vb (tr, adverb)
1. (tr, adverb)
a. to treat violently; beat up
b. to cause (feathers, hair, etc) to stand up by rubbing against the grain
2. to treat violently; beat up
3. to cause (feathers, hair, etc) to stand up by rubbing against the grain
http://www.thefreedictionary.com/rough+up
來教土鱉英文時間...