This phrase is synonymous with "big hands" or "large hands". It just means you have big hands and/or long fingers (which are needed to reach around and play a basswell).
If someone tells you that you have bass player hands it means that either 1:They are just observant and noticed your big hands
or
2:They want your fingers inside them, and they're letting you know that they are thinking about your hands.
Girl-*Notices you have large hands*
Girl-"Ooh you have bass player hands."
Boy-"Yeah they're really good for reaching far into small spaces."
Someone who is a granola-eating, hemp-wearing, pot-smoking, incense-burning vegetarian, who likes to quote Proust but doesn't really understand him, doesn't like movies but only likes "films", and will complain about the evils of capitalism but turn around and spend $500 on ugly glasses frames. Named after the bass player in a band who thinks himself better than the other members and doesn't really associate with them.
Oh, did you see that freak who ordered the gluten-free tofu stirfry? What an independentbass player.
Someone who is a granola-eating, hemp-wearing, pot-smoking, incense-burning vegetarian, who likes to quote Proust but doesn't really understand him, doesn't like movies but only likes "films", and will complain about the evils of capitalism but turn around and spend $500 on ugly glasses frames. Named after the bass player in a band who thinks himself better than the other members and doesn't really associate with them.
Oh, did you see that freak who ordered the gluten-free tofu stirfry? What an independentbass player.
1. An oft-overlooked, semi-transparent, typically overweight, and easily replaced member of any good rock band.
2. Usually the person in a rock band with no say in any band decisions.
3. A guy who hangs out with musicians.
I can always tell when the bass player hasn't shown up because we will get something accomplished at band practice.