a surname

single-minded

something flat; flattened / something ordinary, common, mediocre / a freshman / a novice / a private / the top ridge of a roof parallel to the side of a building / Short for 平織 (hiraori, “plain weave”).

flat / level / even / smooth

flat / level / even / plain / peaceful / calm

shuriken technique

A stick or 'throwing bolt' shuriken.

to throw in the towel, to give up, to quit

pillow fight

a lasso (a long rope with a sliding loop)