Odd Language #187: Making It Out

http://www.sheldoncomics.com/archive/100517.html has this sentence: “I’ll have all eight Sheldon books for sale, and will be giving out free sketches to any and all Sheldonistas who can make it out.”

The issue: “making it out” can mean able to attend (the intended meaning), being able to leave, or being able to see what something is.