look up any word, like blumpkin:
 
1.
Male seamen or sperm.
Cover your eyes baby ! Im about to uncork and cover your belly with man seed !
by Tim McQuaig December 09, 2006
 
2.
Male ejaculate containing sperm.
As the bukkake session ended, the woman's face was all covered in manseed.
by Anonymous October 28, 2002