(intransitive, informal) To study intensely.

(idiomatic, informal) To listen closely; to pay attention.

To start something mechanical, an act that often used to involve cranking. / (idiomatic) To increase, as the volume, power or energy of something. / To describe in praiseworthy terms; to promote.

Alternative spelling of shakeup

(transitive) To agitate by shaking. / (transitive) To restore to its original shape by shaking. / (transitive, informal) To upset or distress (a person).

plural of back-up

brought to a state of great tension

(of a tyre etc) inflated / (by extension) oversized / (of water) raised by pumping / (of a person) tense with excitement or enthusiasm

(colloquial) Made more lively, colourful or modern. / (colloquial) Energetic.

simple past tense and past participle of bang up