Those annoying add-on fees that come at the end of an online transaction are part of a lucrative practice known as drip pricing. The word drip has become a descriptor for anything that slowly increases revenue. For example, drip marketing involves...
sliding n.— «Beavers and other investigators are also on the lookout for a practice known as sliding, where an agent sells coverages or add-ons to clients without their knowledge.» —“Officials Looking to Catch Few Bad Apples Among P/C Insurance...

