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Related to sell short: Buy to Cover
sell someone or something short
Fig. to underestimate someone or something; to fail to see the good qualities of someone or something. This is a very good restaurant. Don't sell it short. When you say that John isn't interested in music, you're selling him short. Did you know he plays the violin quite well?
1. Contract for the sale of securities or commodities one expects to own at a later date and at a lower price, as in Selling short runs the risk of a market rise, forcing one to pay more than one expected. [Mid-1800s]
2. sell someone short. Underestimate the true value or worth of someone, as in Don't sell her short; she's a very able lawyer. [First half of 1900s]
1. To contract for the sale of securities or commodities one expects to own at a later date and at more advantageous terms.
2. To underestimate the true value or worth of: Don't sell your colleague short; she's a smart lawyer.