Green’s Dictionary of Slang

mow v.

[Scot./northern dial. mow, to copulate, and note mouldiworp n.]

to have sexual intercourse; thus mowing n.

[Scot]D. Lyndsay ‘Kitteis Confessioun’ in Laing Works I 134: Quod he, Leve ye in lecherie? / Quod scho, Will Leno mowit me.
[UK]R. Brome Antipodes IV ii: ser.: Sir here’s a Gentlewoman makes towards you. gent.: Me? she’s deceiv’d, I am not for her mowing.
[UK]J. Lacey Sauny the Scot II i: I take as Muckle Pleasure, Sir, in Scratten and Scrubbin, as ye de in Tiplin and Mowing.
[UK]New Academy in Bold (1979) 33: There is no better thing than to be mowing / Than to be mowing.
[UK]‘L.B.’ New Academy of Complements 271: Bonny Kate [...] Thou be’st a bonny Lass, fain would I mow thee.
[UK]N. Ward Hudibras Redivivus II:3 6: Some pregnant Dames, well plough’d and sow’d, / Or, as the Scotch will have it, mow’d.
[UK] in D’Urfey Pills to Purge Melancholy V 89: When he was Drunk, / In came a Punck, / And ask’d gan he would Mow her.
[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: Mow, to mow, a Scotch word for the act of copulation.
[Scot] Burns ‘When Princes & Prelates’ Merry Muses of Caledonia (1965) 53: And why shouldna poor folk mowe, mowe, mowe, / And why shouldna poor folk mowe.
[Scot] Burns ‘Errock Brae’ Merry Muses of Caledonia (1965) 162: A Prelate he loups on before, / A Catholic behin’. / But gie me a Cameronian, / He’ll mow a body blin’.
[UK] in Jamieson Etym. Dict. Scot. Lang. n.p.: Mow .
[UK]Lex. Balatronicum [as cit. 1785].
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
[UK]‘The Mower’ in Fal-Lal Songster in Spedding & Watt (eds) Bawdy Songbooks (2011) III 20: With courage bold, undaunted, she brought me to her ground, / With my tearing scythe in order for mowing meadows down, / There I mowed from nine till breakfast time [etc.].
[UK]Halliwell Archaic and Provincial Words II 564/1: Mow [...] (3) Futuo North.
[US]Matsell Vocabulum 57: ‘The bloke was mowing the molly,’ the man was kissing the girl.
[US]E. Field ‘A French Crisis’ in Facetiae Americana 19: Rasp, roger, diddle, bugger, screw, canoodle, kife and mow.
[US](con. 1952) in Randolph & Legman Ozark Folksongs and Folklore (1992) II 644: If all the young ladies were rushes a-growing, / I’d take out my scythe and start in a-mowing.
[Ire]Share Slanguage.

SE in slang uses

In phrases

mow (on) (v.)

(US campus) to eat heartily, to gorge oneself.

[US]Eble Campus Sl. Oct.
[US]P. Munro Sl. U. 133: mow to eat till one bursts, gorge oneself.
[US]Eble Sl. and Sociability 31: Sometimes the word + particle construction is typical of and strengthens the synonymy of a group of related verbs: [...] mow on, munch out, pig out, pork out, [...] all mean ‘to eat, usually quickly or in great quantity’.
mow the brigalo suckers (v.) [brigalow, a form of acacia, found in New South Wales and Queensland. Its rapid growth can render large areas of land unusable]

(Aus.) to shave one’s beard.

Taskforce Echelon 🌐 He nods saying to himself ‘aye, I could use to mow the Brigalo suckers, alright’ feeling the little bit of stubble on his face. ‘Must look all bow wow.’.