Post boosting refers to internal advertisement system of TipMeACoffee dapp, where users can burn certain amount of tokens to put their post on front page at top positions.
Any post that is fresh (not older than 24 hours) can be boosted. Duration for a boot is 24 hours from the time of its start. TipMeACoffee has allocated specific post positions, 2,5,9 on front page for boosted posts. A user can outbid other user by burning more tokens to gain top spot.
Boosting feature is available on tipmeacoffee.com wallet.