A term used in baseball to describe a sprint from home plate to first base. The distance between each base is 90 feet.
Coach: You guys really blew that drill. Give me 30 pushups and a hard 90 and get back to your positions.
by amishcyb0rg June 4, 2013
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When an attractive girl bends over to pick something up and doesn't bend her knees. If she is wearing a mini skirt, you will almost always get a great pantie shot!
Did you see that girl on the beach pull a hard 90 while picking up her towel?

What a nice camel toe when she pulled a hard 90 right in front of me!
by hrd90lvr January 26, 2010
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