look up any word, like b4nny:
 
3.
1. A male figure who wants a child, has a child, then tries to deny the child to get out of paying child support.
2. A male figure whose child cannot stand him.
1. Kenny blackmailed her into having that baby, but he turned out to be nothing but a sperm donor.
2. She won't even refer to him as her father, she calls him sperm donor to his face.
by LaDeena June 02, 2006
 
1.
The person that gets a female pregnant but doesn't help her with the child in any way, shape, or form. In some cases they don't acknowledge the child at all.
I saw my sperm donor today. He came by to see my daughter and had the nerve to be empty handed.
by Arlene August 27, 2003
 
2.
My father, the asshat.
I disowned my father so now I call him the "sperm donor".
by anon July 29, 2004
 
4.
A boy (not a man), whose sole contribution to the upbringing of his offspring can be repaid by sending him a jizz soaked hankie and a note bearing the words "Now I owe you nothing"(an excellent quote from Salvadore Dali).
1. Adam, my sperm donor, is so lame that he gave the State a false employer name right before christmas.
2. Robert, a boy in a girlie man body, is the avatar of all narcissistic, anhedonic, joyless sperm donors.
3. Elliott, who seemed like a decent sort of fellow, was living a lie every time he called himself a 'father'. In fact, given his many failures to live up to the most minimal definition of the word, the best he could hope for is the ignominious apellation "sperm donor".
by Lawrence of Nevada December 05, 2006
 
5.
A Father or a dead beat dad.
My Sperm Donor hadn't spoken to me since i was 5, and now im 25.
by Jazzy09 June 17, 2009
 
6.
A sperm donor is a man who does the bare minimum with his child.
A sperm donor only does what the courts ordered him to do, pay for health insurance and see child 4 days a month. Can't be bothered with a sick child, ER visits, doctors appointments, procedures, lab work or hospital stays.
by Autismsucks November 15, 2011
 
7.
A man that fathers a child but basically doesn't do much else.
"Why don't you ask your husband to watch the kids for girls night out?" Girl #1 asks.

"Girl please. He aint no daddy, he's just a sperm donor. I'll see if I can get a sitter." Girl # 2 says.
by Bollywood Beast May 19, 2011