babymother 
noun
The mother of one or more of a man’s children, who is not his wife or current partner.If he is a married man, what sort of incriminating things could his babymother be seeing at his house?...
- However just like my babymother they all want the World and are usually not prepared to do anything about it themselves.
- Eventually, one of his babymothers got tired of having to raise her son off her small paycheck and took him to court for not financially supporting the child.
Origin
1960s: from baby + mother, after babyfather; originally in Caribbean English.
- Bethesda
- be the shit
- be the shizzle
- be the spit (or the dead spit) of
- be thick on the ground
- be thick (or thin) on the ground
- bethink
- Bethlehem
- be thrown back on
- Bethune, Henry Norman
- be tickets
- be tickled pink (or to death)
- betide
- betimes
- Betjeman, Sir John
- be toast
- be to blame
- be to do with
- betoken
- betony
- betook
- betray
- betrayal
- betrayer
- betroth