noun
plural trifles
[count] :something that does not have much value or importance
[count, noncount] :a dessert made of layers of cake, jam or jelly, and custard and topped with whipped cream
a trifle
to a small degree :slightly
verb
trifles; trifled; trifling
trifle with
[phrasal verb]
trifle with (someone or something) :to treat or deal with (someone or something) in a way that shows a lack of proper respect or seriousness