toe jam

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun uncountable, slang Sticky matter accumulated between digits of a foot.
• noun countable A stubbed toe.
• noun countable A rock-climbing maneuver entailing exerting force with two opposite surfaces of the toe of a shod foot, against two different rock surfaces, for the purpose of preventing motion of that foot in a direction parallel to both of those rock surfaces.