court disaster
Synonym discussion
Sense: idiom/1
All four expressions describe risky behaviour, but they differ in tone and connotation. 'Court disaster' is the most formal and literary — it appears in news reports and serious commentary, and the risk is often not immediately visible. 'Tempt fate' carries a superstitious flavour, as if the person is challenging luck or destiny to strike back. 'Play with fire' is vivid and colloquial, emphasising that the danger is obvious to any observer. 'Ask for trouble' is the most conversational and everyday option — you might hear it in a parent's warning. 'Push one's luck' implies the person has already succeeded at something risky and is now overreaching. For instance, a politician hiding evidence is courting disaster; a teenager skating down a steep railing is asking for trouble; a gambler who has already won three times and bets again is pushing his luck.
Etymology
The verb 'court' originally meant 'to seek favour at a royal court,' from Old French cort (royal residence). By the 16th century, it broadened to mean 'seek' or 'woo' in general, and from there developed the ironic sense of 'inviting something unwanted' — so 'court disaster' means you are effectively wooing misfortune as if it were a desirable partner.