Green’s Dictionary of Slang

Steve McQueens n.

[rhy. sl.; ult. US movie star Steve McQueen (1930–80)]

jeans.

[US]N.Y. Post 7 June 10/5: Celebrity culture has overtaken Britain’s rhyming slang [...] Steve McQueen’s is ‘jeans.’.
[UK]B. Kirkpatrick Wicked Cockney Rhy. Sl.