She probably sees coconuts as big brown hairy balls, which to her would be boring since it sounds like a manly thing. You just have to make them sound more attractive to her than shopping. With shopping, every girl has the same stuff. It's not special anymore. Every girl has the same Justin Bieber CD, same cute $10 mittens, same Lady Gaga tank-top, and same fancy $2 trinket earrings. That's boring!

Now, coconuts? Not every girl has big coconuts! That makes them special and a must-have accessory.  You can eat coconuts. You can drink from them, or juggle them, or slap them with your hands to make a drumming sound. You can squish them (when they're green, not when they're hard and brown). You can also use them for bikinis. Or just to throw at penguins.

Is that because your pipes are hardly ever used and have rusted from neglect?