Related Clues:

• Luigi, to Mario, briefly
• Sis' sib, possibly
• Hedonistic young male, slangily
• Alphabetically first sib
• 'Dude'
• Guy to say ''Sup?' to
• Sis may have one
• Sis’s sibling
• "Cool story, ___"
• Counterpart of sis
• “My man!”
• ''Yo, dude!''
• 'Dude,' in Black vernacular
• ''Dude''
• Guy in a frat