A beef jerky.
A beef jerky is the act of giving or receiving a
handjob. Usual one would use saliva or some sort of lube for a
handjob; a beef jerky requires uncooked ground beef.
Why do you ask? Say your camping, forgot to bring lube and both you and your partner have the pasties. Look no further then a pack or room temperature ground beef.
You can also use other ground meats.
If your partner vigorously jerks fast enough this
will create enough heat to have a meal after sex.