Lyric discussion by irkthepurists 

Cover art for Mash It Up Harry lyrics by Ian Dury And The Blockheads

Although I've never heard it used before, I think "Wembley" is Dury's rhyming slang (a London thing)for "gay". The road leading to Wembley Stadium is Wembley Way. Wembley = Wembley Way = Gay!

I think he cleverly balances slagging Harry off a bit with defending his sexual preferences - ultimately Harry's a "real Golden Wonder" and "...made of flesh and blood" - magnificent!