/ ˈθʌmsʌk; NAmE / noun
[ C , usually sing. , U ] ( SAfrE , informal , often disapproving ) a guess or estimate :
Their sales projections are a total thumbsuck.
/ ˈθʌmsʌk; NAmE / noun
[ C , usually sing. , U ] ( SAfrE , informal , often disapproving ) a guess or estimate :
Their sales projections are a total thumbsuck.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005