Or, (blast that title!) has a feminist backbone (the lead character is a female spy and playwright in 17th-century England) but is mainly an excuse for shenanigans, all of which are enjoyable. This will be your night at the theater: make-outs, gunplay, screwing, rhyming, cross-gender casting, quick changes, a little historical context, funny accents that don’t grate, an expertly waggled prosthetic ass, and three actors playing a half-dozen characters with the sort of unmitigated glee that makes even a silly and lighthearted production totally worth your time. (Seattle Repertory Theatre, 155 Mercer St, www.seattlerep.org, 7:30 pm, $45)