From Longman Dictionary of Contemporary Englishbe a (permanent) fixturebe a (permanent) fixtureSTAY/NOT LEAVEto be always present and not likely to move or go away Gerrard soon became a permanent fixture in the Liverpool team. → fixture
Examples from the Corpus
be a (permanent) fixture• The catchphrase, after all, is a fixture in an otherwise protean world of television comedy.• Horse-drawn carriages counted as an important industry; blacksmiths were a fixture of everyday industrial life.• Jerry's Hamburger Haven has been a fixture on Third Avenue for over 20 years.• He must be a fixture of the cliche.• But a room divider doesn't have to be a permanent fixture, particularly if you don't have much space.• Like Ross Vartian's museum, it will be a permanent fixture. 