Green’s Dictionary of Slang

smooching n.

[smooch v.1 (1)]

1. (orig. US, also smooching party) kissing and cuddling.

[US]Tallahassee Democrat (FL) 2 Apr. 2/2: Ossie says smooching is taboo...that he tells his dates that unless they can carry on a couple of hours conversation that he isn’t interested.
[US]J. Smiley Hash House Lingo 51: Smooching, employee making love to one of the opposite sex while on duty.
[US]J. Archibald ‘Dying to See Willie’ in Popular Detective Mar. 🌐 It was quite evident that Melvin Trumbo was slicking up for some smooching for the ex-con wore a nice white shirt.
[US]Chippewa Herald Falls (WI) 21 Dec. 2/3: Police inspector [...] ordered an end to smooching [...] the trusty prisoners will have to visit their wives [...] through jail bars.
[US]Lancaster Eagle-Gaz. (OH) 30 Sept. 6/2: Congress [should] enact a law requiring that lipsticks carry labels requiring that lipsticks carry labels warning that smooching may be hazardous to the health.
[US]L. Rosten Dear ‘Herm’ 83: God only knows what goes on in non-stop smoochings of that duration.
[US]Democrat & Chron. (Rochester, NY) 7 Aug. 8D/2: Smooching in a car [...] has it all over smooching in a movie house.
[Aus]Age (Melbourne) 11 May 37/5: I want to go to a French film and smooch in the back row with a boy. Then i want to go to a bar [...] with the boy and talk about smooching.
[US]Dly News (NY) S 12 Feb. p8/3oI think smooch is a good word. lots of smoochingtlight: .
[US](con. 1940s–60s) Décharné Straight from the Fridge Dad 170: Smooching party Kissing.
[US]Chicago Trib. sect. 7 31 May 13/2: I notice a well-dressed man and a very pretty young woman by the bar smooching.

2. (also smoocher) in fig. sense, becoming non-sexually intimate with.

[US]T. Thursday ‘The Big Squawk’ in Smashing Detective Mag. 15 Apr. 🌐 How do the officers know that you and Pete Rundell have not been working some kind of smoocher with Hammerton?