To laugh so much that one's entire body moves somewhat uncontrollably.

simple past tense and past participle of about-face

Third-person singular simple present indicative form of about-face

plural of about-face

sequentially; in turn

Alternative spelling of turnabout.

(rhetorical question) A general statement of surprise or bemusement with regard to a particular event.; isn't that good, or unexpected, etc.

To move erratically by jumping. / To move from side to side, or fidget annoyingly, usually as a result of being nervous.

Third-person singular simple present indicative form of run about

simple past tense of run about