The snug is the part of the ear that forms a gentle ridge towards the back of the ear. Continuing up, it curves into the upper conch; moving forward from the snug, the ear drops down into the conch. Behind the top of the snug is the very beginning of the helix, and behind the bottom is the last little bit of soft lobe before the ear becomes all cartilage. Any piercings of the snug must be very close to the surface of the ear on either side (especially in the back). This requirement of being "snug" creates a double entendre of the name of the part.

If a left ear looks something like this, the asterisks show roughly where the snug is:

 ____
/ _  \
\_ \  |
 \  |*|
 / _/*|
     /
 \__/