Someone who constantly grumbles about life and/or complains about anything and everything imaginable.
My friend is such an angst muffin; all he ever does is groan about how terrible his home life is.
If you keep being an angst muffin, nobody will want to hang out with you.
If you keep being an angst muffin, nobody will want to hang out with you.
by Zephyranthia November 22, 2010