pickbrain bucket . brain bucket {n.}, {slang} A motorcycle helmet. If you want to share a ride with me, you've got to wear a brain bucket. Categories: add yours noun slang Source: A Dictionary of American Idioms 'brain bucket' on video Noisia & Ed Rush & Optical - Brain Bucket (VSN009) Pleb to Pro - How to Airsoft Brain Bucket (Helmet) Brain Bucket The Coon Dogs - Brain Bucket sort: relevance, mode: exact match, q: "brain bucket", maxResults: 4, videoEmbeddable: true, videoSyndicated: true, safeSearch: strict, type: video Subscribe to: American IdiomsEnglish Slang Discuss