noun
series of holidays with workdays in between
Refers to a stretch of consecutive public holidays interrupted by one or two working days, creating a 'stepping-stone' pattern. Often used in the context of Golden Week or other holiday clusters.
今年のゴールデンウィークは飛び石連休になりそうだ。
This year's Golden Week looks like it will be a series of holidays with workdays in between.
飛び石連休の間
Many people take paid leave on the workdays between the holidays to make it a long vacation.