As adverbs the difference between poshly and toshly
is that poshly is in a posh way while toshly is (scottish) , tightly, cleanly, neatly.
toshly
English
Adverb
(
en adverb)
(Scottish) , tightly, cleanly, neatly
*1788 , E. Picken, Poems & Epist. , 176
*:Row't toshly up, an' franket.