month

[days/months/weeks etc.] on end

if something happens or continues for days, months etc. on end, it continues for several days, months, or weeks without stopping. We sometimes don't see each other for months on end, but we're still good friends.

See also: days, end, week

the flavour of the month (British & Australian, American & Australian)

someone or something that has suddenly become very popular, but may not remain popular for long. Role-playing games are suddenly the flavour of the month.

not in a month of Sundays

if you say that something will not happen in a month of Sundays, you mean that it is not likely to happen. He'll never run the marathon, not in a month of Sundays.

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flavor of the month

suddenly but temporarily popular. This rap artist is pop music's current flavor of the month.

Etymology: based on the custom of selling a different special flavor of ice cream (= frozen sweet food) every month

See also: flavor

month after month

repeatedly for many months. You have to pay for Internet access month after month.

day after day

week after week

year after year

See also: after

month by month

every month. I look at my bank statements month by month, and I can tell you to the penny how much we spend.

day by day

week by week

year by year