rocket scientist

Etymology
From.

Noun

 * 1) An aerospace engineer.
 * 2)  One qualified to handle or understand things which are very complex or confusing; a very intelligent person.
 * 1)  One qualified to handle or understand things which are very complex or confusing; a very intelligent person.
 * 1)  One qualified to handle or understand things which are very complex or confusing; a very intelligent person.
 * 1)  One qualified to handle or understand things which are very complex or confusing; a very intelligent person.
 * 1)  One qualified to handle or understand things which are very complex or confusing; a very intelligent person.
 * 1)  One qualified to handle or understand things which are very complex or confusing; a very intelligent person.

Usage notes
In sense 2 (“one qualified to handle or understand that which is very complex or confusing”), the term is usually used in a negative comparison to show that something is (or should be) obvious, simple, or straightforward.

Translations

 * Czech: bůhvíjaký génius, kdovíjaká bedna
 * Dutch: raketgeleerde
 * Finnish:, rakettitieteilijä,
 * French: avoir fait Polytechnique, , grand clerc, ,
 * Polish:, mózgowiec
 * Russian: