(finance, economics, politics) Deemed too important to the economy or polity to be allowed to “fail”, that is to be liquidated or to go bankrupt.

(idiomatic) To exceed an unstated limit, especially a limit of acceptable behaviour.

Nothing, good or bad, lasts forever; all circumstances are temporary.

(idiomatic) A step or action that is too ambitious; an act of overreaching.

(colloquial, Hong Kong) To think over a problem in a complex way where the solution is simple.

(idiomatic) at the last possible moment; just in time / (idiomatic) after an undesirable delay; undesirably late

Used other than figuratively or idiomatically: see one, too, many. / (idiomatic) One or more servings too many of alcohol, leading to drunkenness.

(idiomatic) To insist so passionately about something that people suspect the opposite of what one is saying.

(idiomatic, of a person, plan, theory, etc.) Shrewd but flawed by overthinking or excessive complexity, with a resulting tendency to be unreliable or unsuccessful.

Third-person singular simple present indicative form of protest too much