Top definition
This is a condition that occurs as a result of one person having a birthday. The song "Birthday Sex" will play in one's head the entire day, nonstop, and cannot be cured. this condition is made several times worse if the said person doesn't actually have sex on his Birthday.
Bill was found in his room, in the fetal position, screaming," I HATE YOU JERIMIAH" ... Birthday Sex Syndrome has claimed another victim.
by BirthdayGoneBad July 13, 2010
Get the mug
Get a Birthday Sex Syndrome mug for your brother-in-law Trump.