gaubey, n. — Green’s Dictionary of Slang

gaubey n.

also gauby

[Irish gabhgaire, an onlooker (at a card-game)]

(Irish) a gawper, one who looks on while others are doing something.

1825		‘Larry O’Brien’s Escape’ in Humorous Songster 5: Blood and ’ouns! what a gauby for to tarry.
1997		Share Slanguage.