We've found 4 phrases for authentic (0.131 seconds):

keep it real »    To be authentic, true to oneself; to be cool.

nose test »    An informal method for determining whether something is authentic, credible, or ethical, by using one's common sense or sense of propriety.

real deal »    A thing or person which is genuine, authentic, or worthy of serious regard.

smell test »    An informal method for determining whether something is authentic, credible, or ethical, by using one's common sense or sense of propriety.

New:  We also know Zip Codes FYI!