PLEASE DISREGARD YESTERDAY’S POST. Well, actually, please go on regarding it, but with the knowledge that it was a blatant lie in celebration of April Fools’ Day. Sorry! Here’s a real yojijukugo for the week:
Literally: one – touch – instant – emit
Alternately: An “explosive” situation. A precarious balance that will collapse at a single touch. A hair-trigger.