1. [19C+] a frolic, a game; thus larkiness, a propensity for such pleasures; also used ironically/negatively.
2. [early 19C] a propensity for fun and games.
3. [mid-19C] the butt of a joke or ‘game’.
4. [mid-19C; 1970s] (also larkey) an amusing person.
5. [mid-19C+] any form of activity, occupation.
6. [1920s+] (also larks) a criminal scheme.
[late 18C] (UK Und.) a confidence trick.
[1910s] and no fooling around.
[1910s–20s] to deceive, to fool.
[early–mid-19C] to cause a commotion.
[early 19C–1920s] on a spree.
[early–mid-19C] having fun.