[oh-ver-bloh] 
verb, -blew, -blown, -blow⋅ing.| 1. | to give excessive importance or value to: to overblow one's own writing. |
| 2. | to overinflate. |
| 3. | to blow over the surface of, as the wind, sand, or the like: dead leaves overblowing the yard. |
| 4. | to blow (a wind instrument or an organ pipe) in such a way as to produce overtones. |
| 5. | to overblow a wind instrument. |
| o·ver·blow (ō'vər-blō') tr.v. o·ver·blew (-blōō'), o·ver·blown (-blōn'), o·ver·blow·ing, o·ver·blows To blow (a wind instrument) so as to produce an overtone instead of a fundamental tone. |
vərˈbloʊ