Green’s Dictionary of Slang

1. lit. or fig., a knockout blow.

1846		Swell’s Night Guide 76: This last remark was too much for the chummy’s donna; it was all up her jacket; it was a gooser with her nibbs.
1859		Hotten Dict. of Modern Sl. etc. 46: GOOSER, a settler, a finisher.
1861		(con. 1840s–50s) H. Mayhew London Labour and London Poor III 123/1: I started off to do away with myself [...] and went to say good-by to my good friend, and it was he who saved my life. If it hadn’t been for him it would have been a gooser with me.
1873		Sl. Dict.

2. in fig. use, a waste, a failure.

1846		Swell’s Night Guide 68: I fancy I can come that slang rumbo and patter gospel slap. But since these mendedicity coves has come up – they are so down on us kids that its almost a gooser vith us.
1865		Leaves from Diary of Celebrated Burglar 152/1: It’s aul a ‘gooisir,’ lads, aul a ‘gooisir ’— ne’er a ‘mag’ fur ’z noaheow.