I think it's ukelele.

If this is the worst call you ever make playing poker, you'll be in great shape. Just because people shouldn't slow play two pair on a board like that doesn't mean they won't. Also he could have made two pair on the river. At these limits someone slow playing TP wouldn't surprise me.

i didn't see 3 to a straight on the board
This is the only thing that worries me - you should always know the nuts. Practice reading the board, it will save you money.