on spec

Definition

In hope of success, using one's best guess.

Etymology

Clipping of on speculation.

Example Sentences

• "I had written him a letter which I had, for want of better Knowledge, sent to where I met him down the Lachlan, years ago, He was shearing when I knew him, so I sent the letter to him, Just on spec, addressed as follows, “Clancy, of The Overflow”."
• "I'm writing an article on spec. I hope some magazine will buy it."
• "He bought the land on spec — he thinks it's likely to be rezoned commercial and subdivided."