suffix
Colloquial suffix attached to the continuative form of verbs or to nouns, expressing the manner or style in which something is done. Similar to ぶり but more casual and emphatic.
See also: 振り (ぶり)
彼の飲みっぷりはすごいね。
His way of drinking is impressive, isn't it?
あの選手の走りっぷりは本当にきれいだ。
That athlete's running style is really beautiful.