F5-ing Share definition Flag When Reloading, Refreshing, To Refresh, Time of the month, So on so forth(hehe). "This is taking to long, I'm F5-ing this shit!" F5-ing by YouDidntKnowWhatItMeantDidYou July 22, 2014 0 0 Get merch Get the F5-ing mug. Buy Now — $32.95 See more merch