Green’s Dictionary of Slang

canoodle v.

also conoodle, kanoodle
[ety. unknown but presumably linked to SE cuddle]

1. [mid-19C+] (orig. US) to cuddle, to caress sexually; usu. as canoodling n., cuddling or love-making; also as adj. canoodling.

2. in fig., use, to persuade.

In derivatives

canoodler (n.)

[1900s] one who indulges in some degree of love-making.