Manhattan Clam Chowder Bowl
can only happen when a woman is on her period, especially when the blood is clotting.  this takes place when a man ejaculates into a womans vagina while she is on her period; the semen and blood mix together.  it is completed when the woman pushes it out of her vagina.
" When Rod is finished having sex with Jill he likes to feast on her Manhattan clam chowder bowl."