: in the most active or intense part of (something) a soldier in the thick of battle.

What means through thick and thin?

Meaning. Under all conditions, no matter how challenging or difficult. To support someone through good and bad times. To do something even though the circumstances are not ideal. To stay by someone's side over a long period of time, even when times are tough.

What is a roll out?

What Is a Rollout? Rollout is an informal business term for the introduction and integration of a new product or service to the market. A rollout often refers to a significant product release, which is frequently accompanied by a strong marketing campaign, to generate consumer interest.