o·ver·blow 
(ō′vər-blō)
(ō′vər-blō)tr.v. o·ver·blew (-bl), o·ver·blown (-blōn), o·ver·blow·ing, o·ver·blows
1. To cover by being blown by the wind: graves that were overblown by sand.
2. To blow (a wind instrument) so as to produce an overtone instead of a fundamental tone.
3. To exaggerate or overreact to.
[Sense 3, back-formation from OVERBLOWN1.]