guinea pig night
构词拆分
guinea pig词根/词干
+
night词根/词干
词源说明
From guinea pig + night, implying that the patrons are being used as guinea pigs to test the newly-assembled rides.
释义（英文）
名词 Noun
- (Northern England, humorous, colloquial) The opening night of a travelling funfair at a new location, sometimes accompanied by a discount or deal.