Green’s Dictionary of Slang

paste n.¹

semen.

1842		‘The Bill Sticker’ in Nobby Songster 6: And Helen Fawcett, bless her eyes, she / takes the paste quite freely.
1997		Roger’s Profanisaurus in Viz 87 Dec. n.p.: population paste n. Semen; baby bullets (qv).
2003		Ben Bad Wank Day on FunnyDaze.co.uk 🌐 The first wad of population paste erupted from my volcanic cock and shot across the room.
2006		blurb for ‘British Bangers Housecalls 3’ film at www.vidshop.com 🌐 REANNE, who popped in after work for a shag and a bit of anal before being in receipt of a portion of man-paste over her big jubbly titties.
2011		J.J. DeCeglie Drawing Dead [ebook] My paste was gonna be fizzing like sherbet in her stomach.