Yesterday, Slovakia and Russia faced off in a preliminary hockey game at the Winter Olympics in Sochi. Jan Laco played the goalie position. When the puck slipped behind him, a Russian player dashed for it.
Then Oh. My. God. Becky. Laco just pushed backwards and crashed into the Russian player like his butt was a block of steel.
Russia prevailed anyway. But now Laco is famous the world over for his butt Czech check.
-via Puck Daily
There's actually a penalty in hockey called "butt ending," but that's hitting an opponent with the "butt" end of the hockey stick.
As noted, it might be called a hip check, with all due credit to Miley Cyrus, but it still looks like interference to me.