With enough skill and enough power, you could probably drift in reverse. Otherwise, all you can really do is slide around on wet roads. It's all about weight transfer.
According to Wiki: There's nothing here to suggest that FWD cars can't meet this criteria. It's just harder to do.
If you're familiar with rallying.... some of their cars are AWD, and drifting is basically essential.
If you ever hear me talk about "horrible electronic music"... the music in that video is a great specimen of what I'm talking about. Meanwhile, my Mr. Safety side tells me that some of the moves featured in that video were crazy reckless toward other people and their property (unless they've blocked the road on the sly or have some kind of radio communication setup that we don't know about), and my Mr. Obnoxious side tells me it doesn't count as real drifting if the parking brake is involved.
Ofcourse you can drift a FWD car. I got some nice drifts with my first gen. Mondeo sedan, with a broken 1.8 liter engine and no handbrake. And that was with identical tyres all around and on dry tarmac. Basically all you have to do is a "scandinavian flick". However, not all FWD cars seem to want to drift. For example my Mazda 626 really disliked it on dry tarmac, it was hard to get it sideways and when I managed that, controlling the slide was nearly impossible. When winter came, that all changed: it was amazingly easy to slide, even through narrow gates.
I remember doing a DPF run on my volvo and I got the tail out of shape after overtaking a BMW X5 and I drifted it through a bend and got back into the correct lane and I have no experience with drifting I am more of a circuit driver if you will, but I knew what to do to get it back in lane, the entire thing perplexes me to this day how I knew exactly what to do...