Past Riddle #132 (Mar 23, 2024)

I come unbidden, a jester unseen, with a jolt and a sound, I intervene. In the midst of a feast or a draught of brew, I'm a tiny rebel that breaks through. Not a burp nor a cough, but a kin of both, I dance in your chest, an unwelcome host. What am I?

Stats & streak won't change.