noun
bucko
BUH-koh
noun
1
A blustering, cocky, or bullying man.
"The old sailor had no patience for the young bucko showing off on deck."
2
An informal term of address for a man, often used half-jokingly or with a hint of challenge — like "pal" or "buddy."
""Not so fast, bucko," the shopkeeper said as the boy tried to slip out the door."
How to Use Bucko
Learner’s notesIn plain EnglishA slightly old-fashioned, cheeky way of addressing a man, sometimes affectionate and sometimes a bit confrontational.
When to use it
Informal and somewhat dated; common in older films and comics.
Word Forms
buckos plural, buckoes plural, Buckos plural
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The old sailor had no patience for the young _____ showing off on deck.
Etymology
From "buck" (a spirited or adventurous young man) plus the informal "-o" ending, similar to "kiddo."