“When roasted crabs hiss in the bowl.”
To “turne a crab” is to roast a wild apple in the fire in order to throw
it hissing hot into a bowl of nutbrown ale, into which had been put a
toast with some spice and sugar. Puck describes one of his wanton pranks:
“And sometimes I lurk in a gossip's bowl,
In very likeness of a roasted crab,
And when she drinks against her lips I bob:”