Mongrel refers to mixed ancestry:

• Among pets, one whose parentage is of unknown or mixed breeds as opposed to purebred.
• Among dogs, this is also called a mutt or a mixed-breed dog. Owners of mixed-breeds in the USA refer to their dogs as "All American" when involved in competitive sports.
• A mongrel cat is referred to as a moggy in Australia and the United Kingdom.
• "Mongrel" is a derogatory epithet in Australia. It is generally used to refer to an ill-bred man; a man of poor manners or morals.
• In the Philippines, they are referred to as "Askal" which is short for "Asong Kalye", literally meaning street dog.
• "Mongrelism" is a term coined by Manawatu Turbos captain Hayden Triggs, which means to play in a style with more aggression

See also

• Chanpon
• Heterosis (Hybrid vigor)