(literally) Thoroughly soaked; drenched. / (idiomatic) Utterly incorrect; erroneous; uninformed. / (idiomatic) Deliberately and grotesquely untruthful.

Knowing everything; omniscient.

plural of all-nighter

(chiefly UK, Ireland) Someone who obnoxiously claims to be knowledgeable on a subject.

That consumes everything; that uses everything up. / Totally engrossing, using up all of one's time and energy.

(idiomatic) Ruined; bankrupt. / (idiomatic) completely, to the point of destruction.

Very, extremely; excessively (but lamentably).

plural of know-it-all

(sequence, idiomatic) Firstly; before anything else.

Despite the preceding.