τοιχωρυχώ

From LSJ

πρὶν τοὺς ἰχθῦς ἑλεῖν σὺ τὴν ἅλμην κυκᾷς → you're mixing the sauce before catching the fish | don't count your chickens before they are hatched | don't count your chickens before they hatch | first catch your hare | first catch your rabbit | first catch your rabbit and then make your stew | first catch your hare, then cook it | first catch your hare, then cook him

Source

Greek Monolingual

τοιχωρυχῶ, -έω, ΝΑ τοιχωρύχος
είμαι τυχωρύχος («ὁ δὲ λωποδυτεῖ γε νὴ Δί', ὁ δὲ τοιχωρυχεῖ», Αριστοφ.)
αρχ.
μτφ. μεταχειρίζομαι τεχνάσματα για να διαπράξω κλοπή.