As creatives, we're trained to work within certain restrictions to satisfy budgets. A familiar restriction is cycling through the design process while keeping within a set amount of revisions: the creative changes we perform based on client feedback. We sometimes call these 'rounds'. I find it funny that we use boxing terminology to express this type of interaction with our clients.
“Boxing, a contact sport, is supervised by a referee over a series of short intervals called 'rounds'.” (source: wikipedia.)