What day abb form

A clean happy day, a happy happy day, a happy happy day, a comfortable happy day, a happy day of talking and laughing, etc. AABB-type words refer to overlapping words in which the first two characters of the word are the same and the last two characters are the same. Such as: crowded, quiet, layer upon layer, in a hurry, layer upon layer, layer upon layer, trembling, long and long, lingering, boundless, completely, intermittent, end. Upright, downright, dodging, ding-ding-dong-dong, ding-dong-dang, large and small, carefree, generous, more or less, fluttering, bustling, disturbing, ups and downs, every minute, every second. Mending, all aspects, square, uproar, turmoil, over and over again, obedient, sneaky, bulging, respectful, clean, cheerful, colorful, joyful, mighty, Muddled, booming, booming, rumbling, vague, trance-like, swaying, panicking, every household, rushing, conscientious, stammering, in and out, twittering, etc.