The cheek. Cheek by jowl; close together, or cheek to cheek. My eyes how the cull sucked the blowen’s jowl; he kissed the wench handsomely.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Joskin * Irish ApricotsNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes