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The man that your poor mother mated with to produce you...usually used instead of the term "biological father", where you now have a "new dad" or you don't want to refer to him as your "real" dad.
Daughter: My sperm dad is so cheap he sent me a roll of masking tape for my 12th birthday.

Friend: Well he is from Christchurch (New Zealand)
by Miss Polly January 24, 2008
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Apr 22 Word of the Day
When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
via giphy
by ecogoth December 30, 2020
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