noun
    
    plural -dies
    
    [count] informal :a close friend - used especially to describe men or boys who are friends
    
    
    
    
    
    
    
    [singular] US informal + sometimes impolite - used to address a man who you do not know
    
    
    
    [count] :a person who does some activity with you
    
    
    
    
    
    the buddy system
    
    US :an arrangement in which two people help or protect each other
    
    
    
    verb
    
    buddies; buddied; buddying
    
    buddy up
    
    [phrasal verb] US informal :to become friendly especially in order to get help or some advantage - often + with
    
    
    
    
    
    adjective
    
    always used before a noun
    
    informal :telling a story about a friendship between two usually male characters