It doesn't just have to be
semen, it can be any liquid or powdered substance.
Salt, pepper,
sugar, hot sauce, anything goes.
The USMC drill sergeant has just woken up an oversleeping cadet by setting off the Lagasse alarm, throwing pepper on the man's face.
"BAM! Wake up,
maggot! Just who the
hell do you think you are? Rip Van Winkle? Get up, take a
shower, dress up, and catch your sorry carcass up with the rest of the others who are apparently better evolved primates than you are! Yeah!"