This is the 4279th most frequent Spanish word.
pacheco
"Pacheco" is Mexican slang meaning "stoned" or "high," typically from drug use, especially marijuana.
In this sentence, 'pacheco' is used colloquially to describe the weather as peculiar or strange.
El clima está un poco pacheco hoy.
The weather is a bit odd today.
Here, 'pacheco' is slang for being intoxicated or under the influence of marijuana.
Juan estaba pacheco después de fumar.
Juan was high after smoking.
In this context, 'pacheco' expresses an unconventional or bohemian style of clothing.