/oh'veuhr sel"/ , v. , oversold, overselling .
v.t.
1. to sell more of (a stock, product, etc.) than can be delivered.
2. to sell aggressively, as by using high-pressure merchandising techniques.
3. to emphasize the good points of excessively and to a self-defeating extent: She so oversold the picnic that I became convinced I'd have a better time at the movies.
v.i.
4. to sell something aggressively.
5. to make extreme claims for something or someone.
[ 1570-80; OVER- + SELL 1 ]