Hahaha, you'll have to excuse scally, he's crazed, and generally berates people. On the upside, in this message to you he was coherent; in other threads usually his posts have the same punctuation- and grammar-free qualities, but are also real head-scratchers, like, "What on Earth did that even mean?"
Anyway, you're doing calf raises and lunges and stuff and not really seeing any improvement? I don't really know much about gym exercises for calf building; I have big calves but it's from cycling. But I'll just spout off the info I know:
Your calf muscles are just about all used primarily for moving the foot.
The big guys, the soleus and the gastrocnemius, are the foot's plantar flexors, i.e. when you stand on tip-toes, pressing down through the ball of the big toe, they're the things that engage. They're the bulk of the muscle on the back of your lower leg.
Then you have the ones that pronate and supinate the foot -- if you're standing up straight and you roll the weight towards the outer edge of your foot, that's supination (aka inversion); roll the weight in towards your inner heel and the ball of the big toe, lifting the outer edge of the foot off the ground, and that's pronation (aka eversion). Those use muscles running down the sides of the leg (you can tell; when you pronate it makes a kind of gash-like indentation along the outside of your lower leg, for example.) I think they're important for calf definition.
Then there's the tibialis anterior, which is the antagonist to the gastrocnemius and soleus -- it dorsiflexes the foot, i.e. elevates it, and it runs down the front of the shin, alongside the tibia.
You can work the plantarflexors, the gastrocnemius and soleus, by doing calf raises; stand with just your toes on the edge of a step, hold onto something with your hands for balance, then lower your heels down, raise them up, etc. Keep your legs straight (don't lock out your knees, though, keep a little micro-bend in them to keep the knees healthy.) You'll feel this in the calves pretty quickly.
For the other ones, I recommend doing balance stuff. Practice standing on one foot. Get one of those Bosu things (www.bosu.com if you don't know what I mean) and practice doing unloaded squats while standing on it. Over time that kind of stuff will strengthen the muscles of the calf and foot and add definition. I get that through my yoga practice.
That's all I got. Sorry I don't know more specific gym exercises for them, but I'm sure others on here will.