frenulous
A term to describe a subject, item or piece of information that is very sensitive and could cause a lot of pain if it were abused.
Jacob's knowledge of his army friend's homosexuality was frenulous during the Dont Ask Dont Tell policy.
frenulitis
A sprained tongue or torn frenulum caused by prolonged cunnilingus without rest
Man, after 45 minutes of eating that out that chick's pussy I had a bad case of frenulitis and could barely eat or talk the next day