Jetter

So helpe me God , so were ye better ; What shulde a begger be a jetter?

Source: wiktionary

A late fifteenth-century reference to 'the jetters of the Inns of Court' anticipates the exclusive association of jetting with young men, as the word jet appears frequently in late sixteenth-century satires of city gallants who are described as 'jetters.'

Source: wiktionary

'Be not too confident.' 'Faith, I am not. Should a begger be a jetter? And yet—'

Source: wiktionary

Many machines incorporate a mechanical or ultrasonic ' fobber ' or a jetter, using either beer or water , which induces beer in the filled bottle to rise as foam or fob and displace air in the space above the beer.

Source: wiktionary