Reverse Dictionary: AFTERTHOUGHT

NOUNS
AFTERCLAP an afterthought; anything occurring when it has ceased to be expected; anything that comes after → 1816 Eng. dial.
AFTER-FETCH an afterthought or action → 1898 Eng. dial. (Bk.)
BACK-FETCH an afterthought; a recalling to mind of something forgotten or omitted → 1898 Eng. dial. (Bk.)