Male or female person who is known for their patience and skill with someone, always leading a have a great and safe first sexual experience in bed.
"I know Jane she's a great First Timer, you should set her up with your friend he'll have a great time"
"Thank you for the great evening, I didn't know you were such a great First Timer. I feel wonderful"
First Timer Syndrome is a desperate obsessive compulsion to be the first at something; regardless of whether it was commercially viable.
Dan didn't know why his crypto project wasn't valuating: It turns out he was suffering from a severe case of First Timer Syndrome.