machín
awesome
macho
male, manly
+
-ín
diminutive suffix
Machín means awesome and can be remembered as a combination of macho0 (manly0) and the diminutive suffix -ín1, suggesting something that's 'awesomely manly' in a cute way.
adjective
- awesomeVery good, excellent, or coolEl concierto estuvo machín. // The concert was awesome.