When you use a good-natured and cheerful voice to prod guests at a party to move from one room to another, this is an example of a time when you jolly them along.
When you put on music at a dull party to make it more fun and cheerful, this is an example of a time when you jolly.
A cheerful Santa Clause figure is an example of someone who would be described as jolly.
A fun night at the pub is an example of something that might be described as a jolly time.
A jolly tune.
Had a jolly time.
However you get your jollies is fine with me.