I've always had trouble understanding か (question particle) in casual speech. I read that in casual situations, か can be used to give the sentence an exasperated or sarcastic tone. Like in: 負けっかよ！ ...
I am familiar with contraction of の to ん before です (and variants で, だ, でした etc) but I noticed that の is also contracted before 家 in spoken set-phrases like あたしんち and おれんち. Are there any other ...