No, there is no recreational value to meclizine lol. High dosing will produce effects similar to high dose diphenhydramine (Benadryl) or high dose dimenhydrinate (Dramamine). If you like the idea of imagining spiders are crawling all over you, and being in complete confusion, I guess you could call it recreational lol.
Edit: it will more than likely do nothing to the effects of cannabis, especially in therapeutic doses. There's a reason this drug is over the counter, and marketed as a less drowsy formula for nausea.