To crack a joke, to try to be funny — with the slight implication that you’re not entirely sure it’ll land. The suffix -нуть says it all: a brief, one-off attempt, result pending. Formed from юмор (borrowed from English humour).
Бляяя… А я только хотел спросить, не предлагали-ли ещё огнемёт использовать. Типа, хотел юморнуть…
Blimey… I was just going to ask if they suggested using a flamethrower. Just kidding, you know…
(kot-obormot @ guns.ru, 07/2011)
