As opposed to the standard ORgasm, an andgasm is simultaneous climax achieved by both partners during intercourse. Particularly hard to time / pull off but immensely rewarding.
When a person, almost always but not necessarily a female under the age of 21, shows very emphatically that they think something is cute and/or pitiable; often times they will make a high-pitched "ohhh-"type sound, hence, they have an awgasm.
The peak of moral depression, characterized by strong feelings of displeasure and by a series of involuntary outcries and/or squeals.
Quite frankly the opposite of an orgasm.