with obj.
1- informal spread or smear (a substance) thickly or liberally〈非正式〉（厚厚地, 大量地）覆盖, 涂抹：
slather on some tanning lotion.
大量涂抹防晒霜。
1.1
- spread or smear a substance thickly or liberally on（厚厚地, 大量地）将某物覆盖（或涂抹）在…上：
scones slathered with clotted cream.
涂抹了大量凝结奶油的烤饼。
短语
open slather
- Austral./NZ informal freedom to act without restriction; free rein〈澳/新西兰, 非正式〉自由行动; 自由支配：
you've got an open slather here, lad - do what you like.
你可以自由行动, 小伙子——做你想做的事。
词源
early 19th cent.: of unknown origin.