Synonyms for Corking:

n.

corking (noun)
great, smashing, good, peachy, nifty, swell, keen, neat, bang up, not bad, groovy, cracking, dandy, slap-up, bully.

v.

plugging (verb)
stopping, covering, closing, Plugging, tapping, Bunging.

Other synonyms:

bang-up
bang up.
Other relevant words:
great, neat, bully, peachy, nifty, cracking, slap-up, groovy, good, smashing, swell, not bad, dandy, keen.