Peadar Mercier, bodrán player in the Chieftains in the early years, explained that to fix the jig rhythm in his mind, he used the mnemonic phrase "rashers and eggs, and lashings of sausages".

By default, the term "jig" in Irish music is understood by default to mean a double jig, for which the rhythm is 6/8. Let's just steer clear of single jigs to avoid confusion ;-)