i think i may win some bets :)
Mancha is a Spanish word with multiple meanings depending on context.
Primary meaning: A stain, spot, blemish, or mark on a surface, such as a bloodstain (mancha de sangre) or a sunspot (mancha solar).
Figurative use: Can refer to a flaw or discredit to one's reputation.
In Spanish slang: Can mean a group of friends or crew, similar to "gang" in English.
In Portuguese: Also means stain or spot (e.g., mancha de tinta = ink stain).
In English: Borrowed from Spanish, mancha can refer to a high-quality grade of Spanish saffron.
Scientific/astrological: Refers to the Great Red Spot on Jupiter (Gran Mancha Roja).