(noun)
a dessert that consists of layers of cake, sometimes soaked in wine or spirits, and fruit, topped/covered with cream, jelly, preserves, and custard;
e.g. They ate a trifle made of vanilla cake, summer fruits, and whipped cream.
(noun)
a small amount or degree of something;
e.g. She only paid him a trifle for all of the work he did.
(verb)
to treat someone or something disrespectfully or to not afford them due seriousness, thus to treat them as though they are unimportant;
e.g. She warned us not to trifle with her or waste her time.
(verb)
to talk or behave in an idle, mocking, jesting, or otherwise frivolous manner, thus wasting time, possibly for the purpose of misleading or deluding someone;
e.g. He wouldn't dare trifle or trick me after all of the help I have given him.