Top Definition
The first pee in the morning. The first morning urine.
Pathologist: When was the last time you went to the toilet?
Me: At 6:00 this morning.
Pathologist: Your doctor ordered a urine test. Didn't he tell you not to empty your bladder for 2 hours prior to the test?
Me: Hmm I think he did ... but I forgot.
Pathologist: You can wait for another hour to empty your bladder or you can come back tomorrow morning?
Me: I'll come back tomorrow
Pathologist: We're open at 7:00 a.m. "First catch of the day" is always the best.... so take this vial home to use and just put it in the fridge if you can't come in straight away to drop it off.
by Bebang March 10, 2011

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