Are we having fun yet?

The simplest way to express enjoyment in Spanish might be to use the verb 'divertirse', but there are other options available, many of which employ the verb/noun combination 'pasarlo', with an adjective.
Sure, you can say 'me divertí', but won't it sound so much better to say 'lo pasé fenomenal!'
Now, correct me if I'm wrong, but I'm guessing that the 'lo' refers to the time (el tiempo) I passed (yo pasé), and that it was phenomenal!

Other expressions using the same construction include . .
pasarlo bomba
pasarlo genial
pasarlo en grande
pasarlo de película (just like the movies ;¬)
pasarlo de miedo (honest!)
pasarlo de maravilla

Just to cover the technical side of things, while we're enjoying ourselves (lo pasamos genial), the verb 'pasar' should be conjugated to suit the person who is having the good time, and can be in various tenses.
Lo pasaré bomba - I will have a great time
Espero que lo pases genial - I hope (that) you have a good time.

For anyone wondering why that's 'pases', instead of 'pasas', welcome to the Subjunctive!
I've been working on it now for a couple of months. Don't let anyone ever tell you that it's easy. It's not, and an awful lot of mastering it involves learning things by heart (e.g. which verbs force you to use it)
Having said that, it's not impossible but I wasn't expecting, after 3 years of learning Spanish, to hit such a stumbling block.
Don't worry about it. By the time you get around to having to deal with it, you'll be far enough along with your Spanish that you won't be easily put off. Just get your head down and charge right in.
I'll probably write a posting on the Subjunctive, some time soon, once I'm a little more comfortable with it myself.
It helps to have a good teacher (Quick plug for mi profesora XimenaModotti Carami, in Secondlife - visit the schoolhouse at http://maps.secondlife.com/secondlife/Sede%20di%20Marte/214/71/39)

Finally, just a note that 'pasarlo' can also be used in a negative sense, so you can use 'pasarlo mal' if you didn't have such a good time. But hopefully not here.
¡Hasta pronto!