Green’s Dictionary of Slang

friar tuck v.

[friar tuck n.]

to have sexual intercourse.

[UK]J. Franklyn Dict. of Rhy. Sl.
[UK]Dodson & Saczek Dict. of Cockney Rhy. Sl.
The Cockney Handbook: Rhyming Sl. on powdermonster.net 🌐 Friar Tuck – fuck (As in the apparent spoonerism ‘would you like to Friar Tuck?’).