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1. horse pill
Classically, refers to size; an unusually large pill.

Realistically, should refer to Premarin, the birth control that consists of "conjugated estrogens" extracted from horse urine!
1. How on earth can you swallow that multivitamin; it's a horse pill!

2. She's on horse pills
by zaphraud Oct 26, 2004 share this
2. horse pill
A hockey puck, because of its shape and size.
Joanne got clocked by a horse pill at the Pirates' game last night.
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