booze bus Australian English A surprise police roadblock to test drivers for alcohol consumption. The “bus” refers to the large vehicle police use at the roadblocks. Initial questioning of those who register a blood alohol content above the legal limit takes place within the bus. 日本語 警察の飲酒運転検問のこと。 Plain English Breathalyzer test checkpoint. Strine Dictionary Related posts: Strine Dictionary Japanese Government Ministries & Agencies/政府省庁ウェブサイト Bingle/事故 Barbie/バーベキュー Powered by YARPP.