pickfirst base . first base {n. phr.} 1. The base that must be touched first by a baseball player after batting. He got to first base on four balls. 2. See: GET TO FIRST BASE. Categories: add yours noun Source: A Dictionary of American Idioms 'first base' on video First Base - love is paradise (Dance Mix) [1995] First Base - Can You Keep A Secret How To Play First Base - 8 Simple Tips For First Base MLB | first base 2021 Defensive Highlights sort: relevance, mode: exact match, q: "first base", maxResults: 4, videoEmbeddable: true, videoSyndicated: true, safeSearch: strict, type: video Subscribe to: American IdiomsEnglish Slang Discuss