ってヤツ (the thing called)
grammar3 sentences
A colloquial nominalizer compound って+やつ (or ってヤツ with katakana やつ for slangy flavor), meaning 'the thing called X / the thing that is X / one of those X kinds of things.' The kanji compound やつ ('guy / thing') tags the preceding description as a category instance. Hiragana spelling is everyday casual; katakana ヤツ adds slang/emphatic flavor.