Pachecoism
A guy who can dance like a flamingo on a trampoline, but when it comes to asking a girl out, he just stutters and runs away.
'He danced like a flamingo, but when she asked him out, he ran like he was being chased by a dragon.'
'He had the moves, but when he tried to ask her out, he said, 'Do you like me? Or do you just like my shoes?'
'He did the cha-cha, but when it came time to say something nice, he just said, 'I like your face.'