Green’s Dictionary of Slang

carpenter’s dream n.

[pun, see cits.]

an available woman.

[US](con. 1960s) R. Price Wanderers 32: ‘Natalie Wood, a carpenter’s dream.’ ‘Flat as a board and easy to screw.’.
[UK]Roger’s Profanisaurus in Viz 87 Dec. n.p.: carpenter’s dream euph. Sexually promiscuous woman. As in: ‘Flat as a board, and easy to screw’.
www.CyberAge.com [Internet] 7 Oct. [heading] Carpenter’s Dream. I am what is affectionately known as a carpenter’s dream. Flat as a board and easy to screw.