Use "mug up" in a sentence

1. Jack was caught unawares with the coffee mug up to his mouth

2. mug up to my mother for another refill

3. The waitress appeared at Mikey’s side and filled his mug up with steaming java

4. Learning questions directly given at the end would force you to mug up the answers, which will be remembered only for short time

5. tipping his cold-as-ice beer mug up to his

6. I bring the mug up to my lips and drink every last drop