οὔποτε ποιήσεις τὸν καρκίνον ὀρθὰ βαδίζειν → thou shalt never make the crab walk straight
v. intrans.
Ar. πιππίζειν, V. εὐστομεῖν; see sing.
Twitter round: Ar. ἀμφιτιττυβίζειν (acc.).