The 45s is a card game.
Look here: The 45's Card Game
Hi, I've got another Bridget Jones's question. In this sentence:
"a cardboard box full of old 45s which slithered out all over the floor."
What are "old 45s"? I really have no idea here. Thanks.
Old 45s - Vinyl records that were played at a speed of 45 revolutions per minute. They were singles - one song on each side - and about 15cms across.
But in the '50s and early '60s, when pop audiences were content with 2 or three verses + instrumental + repeat one verse, a 45 was just a 45 (which happened to be seven inches across).
Hum... I'm old... This was new, thanks!