he was about to ask her about her [pseudopregnancy], when his afimd [anti-foot in mouth device] kicked in and closed his mouth for him
the part of your brain which kicks in at the last second and prevents you from saying something incredibly stupid
"he was about to ask her about her [pseudopregnancy], when his afimd [anti-foot in mouth device] kicked in and closed his mouth for him" What is the definition of "afimd [anti-foot in mouth device]"?