Konachan has the smoking tag, maybe you're thinking of that.
yea thanks dude ^^
we don't have smoking-tag. as gohanrice already mentioned you can search from konachan and also you can search from danbooru
http://danbooru.donmai.us/
http://konachan.com/
http://danbooru.donmai.us/
http://konachan.com/
Padawan
tag: smoking