[portal gag](/tags/portal+gag) -> [now you're thinking with portals](/tags/now+you%2527re+thinking+with+portals), [portal](/tags/portal), [gag](/tags/gag)
Not sure if [now you're fucking with portals](/tags/now+you%2527re+fucking+with+portals) ~~and/or [portal](/tags/portal)~~ (parent tags apply for this one already) should apply.