1) Involuntary contractions 2) Minor inconveniences 3) Minor setbacks 4) Slight irregularities 5) Spasmodic sound effect Found on https://www.crosswordclues.com/clue/hiccups
Spasmodic contractions of the diaphragm that are involuntary and often rhythmic. Usually just a minor nuisance, prolonged hiccups can become a major problem. ... (12 Dec 1998) ... Found on http://www.encyclo.co.uk/local/20973