hockey stick

Short definition from Wiktionary

Noun

1. 1
   A stick used to handle the puck in ice hockey, having a flat, angled blade at the end.
2. 2
   A stick used to handle the ball in field hockey, having a flat-faced hook at the end.
3. 3
   A playing card with the rank of seven.
4. 4
   A statistical trend in a graph of survey data in which most of the results are flat and then the graph suddenly peaks in a steep near-vertical direction.