Got this solution from Skanker irl in the forum. This cleared things up for me and I was able to get the achievement within the first couple of attempts.Skanker irl said:
Play a regular game on the monthly table called Locomotion. On your last ball only you will be able to earn bonus seconds. The counter starts at 10, and you need to get it to 40+
For me, hitting the bumpers got me the most bonus seconds. I think targets and hitting other things also makes the counter go up.
EDIT 4/17/19: Just updating to say that this can be done on any table. Just lose ball 1 and 2, then score enough on ball 3 to get 40+ seconds.