overstate, overdo, magnify, overdraw, amplify, hyperbolize, overexaggerate, exagerate, hyperexaggerate, exaggregate, more...

understate, minimize, downplay

to overstate, to oversell, to overhype, to overblow, to overplay, more...

hyping up,   make it out to be,   over emphasize,   make a big deal of,   be overly dramatic,   tell tall tales,   embellish the truth,   lay on thick,   carry to extremes,   over do