katzenjammer noun. 
['kats(ǝ)ndʒamǝ] US colloq. M19.[German, from Katzen (combining form of Katze cat) + Jammer distress, wailing.]1.  A hangover; a severe headache. 
M19.2.  transf. & 
fig. Confusion, disorder; clamour, uproar. 
L19.  [TahlilGaran] English Dictionary ▲