Her mantrum was just another temperamental outburst.
childish behavior
Frequency:
65
%
His mantrum was just a display of childish behavior.
emotional outburst
Frequency:
60
%
His mantrum was fueled by an emotional outburst.
Idiomatic Expressions for mantrum
Phrase: mantrum-thrower
Meaning: a person, usually a man, who frequently has tantrums or displays childish behavior
Usage: He's such a mantrum-thrower, always getting upset over little things.