Real Dictionary

trifle
countable noun: A trifle is something that is considered to have little importance, value, or significance.
variable noun: Trifle is a cold dessert made of layers of sponge cake, jelly, fruit, and custard, and usually covered with cream.

trifle in American English
something of little value or importance; trivial thing, idea, etc.; paltry matter
to talk or act jokingly, mockingly, etc.; deal lightly
intransitive verb: to deal lightly or without due seriousness or respect
noun: an article or thing of very little value
transitive verb: to pass or spend (time) idly or frivolously

trifle in British English
noun: a thing of little or no value or significance
verb: to deal (with) as if worthless; dally