From Longman Dictionary of Contemporary Englishdraw in phrasal verb1 TM British English if the days or nights draw in, it starts to get dark earlier in the evening because winter is coming In October the nights start drawing in.2 TAKE PART/BE INVOLVED draw somebody ↔ in to get someone involved in something We should use the demonstration as an opportunity to draw more supporters in. Despite himself, he found himself being drawn in by the man’s warmth and ease.3 draw in your horns British EnglishBFSPEND MONEY to spend less money because you have financial problems → draw→ See Verb table
Examples from the Corpus
draw in your horns• However, it now plans to draw in its horns in anticipation of declining demand for farm machinery by cutting back production. 