A slang verb meaning "to cook in a microwave oven", probably arising from the popular conception that microwaves involve dangerous radioactivity. Fortunately, unlike atomic weapons, nuking with a microwave generally results in warm food instead of the grisly, levelled remains of human civilization. (Although applying the latter name to the concept of "microwave pizza" is, on a metaphorical level, probably more accurate than not.)

Sample usage:

"My soup is cold!"
"Nuke it for 30 seconds."