pump someone's tires

Alternative forms

 * pump up someone's tires

Verb

 * 1)  To praise, encourage, or vigorously support someone.
 * 2) * 2009 April 14, Canadian Press, "AHL leaders in regular season, Manitoba prepares for series with Toronto," The Hockey News (Canada) (retrieved 1 Feb 2017) :
 * "I'm sure (Toronto coach) Greg Gilbert is going to pump their tires with the fact they've beat us six times."

Usage notes

 * Used particularly in contexts involving sports, especially ice hockey.