Definition of ad creep
: the spread of advertising into places where advertisements have not traditionally or typically been shown
- Even public restrooms are susceptible to ad creep.
- The ad creep continued this week as the WNBA's Phoenix Mercury announced a deal to put sponsor LifeLock's name on the front of their jerseys and warm-up suits.
- —John Rolfe, SI.com, 3 June 2009
