刷

shuā

1. to spam; to post repeatedly (comments, memes) (internet)
2. (internet) to scroll through; to come across (as in 刷到)
3. to flash (phone firmware)
4. (gaming) to grind; to farm (levels, loot)
5. to brush; to scrub
6. to boost fake counts (votes, likes, orders)
7. (coll.) to binge-watch; to work through (a series, practice questions etc) in one go (as in 刷剧, 刷题)
8. to swipe (a card) (as in 刷卡)
9. brush
10. to paint; to whitewash
11. to eliminate (as in 刷掉)