/pel"mel"/ , adv.
1. in disorderly, headlong haste; in a recklessly hurried manner.
2. in a confused or jumbled mass, crowd, manner, etc.: The crowd rushed pell-mell into the store when the doors opened.
adj.
3. indiscriminate; disorderly; confused: a pell-mell dash after someone.
4. overhasty or precipitate; rash: pell-mell spending.
n.
5. a confused or jumbled mass, crowd, etc.
6. disorderly, headlong haste.
Also, pellmell .
[ 1570-80; pelemele, OF pesle mesle, rhyming compound based on mesler to mix. See MEDDLE ]