Trip Advisor is the name of a "fantasy band" that includes Panda Bear of Animal Collective and Sonic Boom of Spacemen 3 fame. Sonic Boom himself said the name was used on early demos of songs from Panda Bear Meets The Grim Reaper to prevent leaks. Here is the direct quote

"Oh yeah.....
...That's our 'fantasy band'...... Ha
I used that to stop it falling into ze hands ov ze nme..." Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.