a situation in which someone feels incredibly uncomfortable due to awkwardness he or she is witnessing, also, the simple gesture of launching an imaginary bomb in the case of sufficiently awkward situations among people
Amanda: Woah, look how awkward they are being!
Leah: Awkbomb 2k11 baby...
Leah: Well, that was awkward.
Amanda: (simply gesturing the throwing of the bomb, as if it were a ball to the other person, while accounting for the wind) I'm launching the awkbomb!