Amusing nicknames for things?

I’m not in Spain and I’ve not seen the statues Nava is talking about, but my guess is that the statue is of Christ. The Sacred Heart of Jesus depictions of Him usually feature just a picture or statue of Jesus, yet with his heart “exposed.” Here are some pictures

Hope that helps.

Returning to the Aviation theme of the OP:

Early production Beechcraft Bonanzas are known as “forked-tail-doctor-killers”.
Marketed as a “luxury aircraft” , and expensive enough that only wealthy (e.g. doctors) pilots could afford them, and something of a status symbol…also a fairly fast and complex airplane to fly, so low time pilots tended to get into trouble. The appelation reflected some jealosy, and a mild disdane for wealthy, but low time pilots. (The way many people look down upon Hummer drivers, but arrogance is less likely to be fatal for a car driver than for a pilot) . I once had a pilot friend’s wife look at me in horror when I used the term…she was a pediatrician.
A lot of hang-glider pilots will refer to thier aircraft as “Dangle-Divers” or just “diver”. Sort of a rhyming slang, but also refers to the fact that early rogallo wings were prone to an unrecoverable luff dive if unloaded. (since the late 70’s this is no longer an issue)

There’s what I thought was a Henry Moore at Princeton (not Oval with Points) that looks just like a peppermint Lifesaver. I can’t find an image though so it may be by someone else…?

Yep, Noguchi, “White Sun”. The page it’s on is disabled, but it’s the fourth one over here.

Or the old VW bug called the Pregnant Roller Skate (modernised to Pregnant Skateboard).

Dublin has the Floozie in the Jacuzzi amongst many other nicknamed sculptures.