ἐπὶ ξυροῦ γὰρ ἀκμῆς ἔχεται ἡμῖν τὰ πρήγματα → our affairs are balanced on a razor's edge, our affairs are set upon the razor's edge
expulsor: ōris, m. id.,
I a driver out, expeller (very rare but class.): iste bonorum possessor, expulsor, ereptor, * Cic. Quint. 8, 30: tyranni, Nep. Dion. 10, 2.