High days and holidays British noun phrase
Days when festivities, or holidays happen
My wife and I usually travel abroad on high days and holidays.
There are several festivals held by the village council on high days and holidays.
A high day was the day of an important festival according to the Church's calendar. A holiday (originally holy day ) was similar but less specific. Holiday now refers to any day off, without any sacred significance, and so holy day is used if a specifically religious occasion is intended.
The key element of funny speech and writing is shortness.
A successful comedian is a person who knows brevity is the soul of wit.