Wiktionary
jolly well
adv. (''Used for emphasis'') (context dated humorous English) certainly.
Usage examples of "jolly well".
Rosie, don't laugh so close to me poor old ear, it's jolly well deafenin'.
By Jove, I'll give you two minutes to think the thing over, and, if you don't talk business then, I'll jolly well take my man straight round to Mack Sennett or someone.
Wonder what's for bally supper, us phantoms have t'jolly well eeeeeeaaaaattttt!
I say, that's my belt an' dirk you're jolly well tryin' on, y'know!
And I should jolly well like to know why you've been all this time coming.
I was so jolly well worked up that I went and banged on Jeeves's door.