One of the things I love about Guybrush's name is that it he was supposedly named accidentally.

    From Wikipedia:
    
        The origin of the name "Guybrush" comes in part from Deluxe Paint, 
    the tool used by the artists to create the character sprite. Since
    the character had no name at this point, the file was simply called 
    'Guy'. 
        When the file was saved, Steve Purcell, the artist responsible 
    for the sprite, added 'brush' to the filename, indicating that it was 
    the Deluxe Paint "brush file" for the "Guy" sprite. The file name was
    then "guybrush.bbm", so the developers eventually just started referring
    to this unnamed 'Guy' as "Guybrush".

Yep, together with Zaphod Beeblebrox. Those two together mark the high end of fantastic naming and few others come close.

"Guybrush Threepwood? Ha ha ha!!! That's the stupidest name I've ever heard!"

Couldn't agree more.