An alternative / Sexy / Cool way of saying "mothafucka". it is when you feel like saying something explicit but can't because:
1.You are around adults or small children and you dont want to say mothafucka.
2.You feel its against your religion
...so you say Mothasucka instead
That mothasucka owes me 20 mothasuckin dollars.If i dont get my mothasuckin money we gonna have sum serious mothasuckin problems >:(