To pick or sort through a group to remove things that are bad or below standard; to discard.

Used as a suffix after certain verbs to indicate that an action is being done repeatedly or continuously, as in 折腾 zhē​teng

To pick or scrape something out of a gap or hole with a pointed tool.

(bound form) To move up and down or flip over and over, as in 沸腾 fèi​téng or 翻腾 fān​téng