Synonym of to whom it may concern.

(Canada) The Victoria Day 3-day weekend. / (US) The Memorial Day 3-day weekend. / (Quebec) The Journée des Patriotes/Dollard-des-Ormeaux Day/Fête nationale des Patriotes 3-day weekend

Alternative form of Maigaiti (“Makit”)

Alternative form of pigs might fly

As is appropriate to the circumstances; particularly where a choice must be made between two options.

A children's game in which players have to gradually approach one of the players, the "mother", by asking "mother may I...", upon which the "mother" either replies positively, allowing the players to do the action, or to decline it.

Synonym of to whom it may concern

(idiomatic) Used to wish someone luck with a difficult endeavor.

plural of May-September romance

(idiomatic) by chance, luckily