1. Licking the anus
2. Pleasuring oneself whilst being female
3. Lubing up
4. Literally varnishing a big O which has fallen of the front of a shop and is now serving as an ornament in a gentleman's apartment.
5. Other sexually euphemisms of the readers choosing.
I hope the police don't see me Varnishing the O in the garden this summer, hopefully they won't recognise it if they do!
When unexpected, unwelcome company invites themselves along, and overstays their welcome, oblivious to the fact that they weren't welcome in the first place.
We went out to a nice dinner and got varnished. He sat with us the whole time, telling us boring stories.
The experience of waking up in the morning and realizing that one has ejaculated and soiled his underwear or sheets with semen. Fancy name for a wet dream.
He woke up to a satin varnished dawn, sexual abstinence has taken its toll on him.