впопыхах – helter-skelter, hastily

ВПОПЫХА́Х нареч. попыхивая от усталости и спеху; торопко, торопливо, в недосуге; крайне спешно и как ни попало.

One of those words that just sounds good, and it reminds me of my daughter’s favorite phrase from The Pokey Little Puppy (“tumble-bumble”), purely because of the relationship between sound and meaning.

(Found: «Двойник», Ф.М. Достоевский.)