When you wake someone up by ripping a loud fart in their ear or face. A common prank played on those who like to sleep in at boy scout camp, church camps, fraternities, and boot camp. While likely done do a lesser extent, girls also have been known to participate in this activity at slumber parties. Please note the difference between this definition and "sound the alarm"
A creamy wake up call is when a male courteously wakes you up in the morning hours by abusing themselves aggressively until their urethra expands and drops an ungodly amount of semen on your face. The resulting wake up is one of extreme bliss where the load to your face results in your penis rising with the morning sun.