warmer-upper

noun3

1. •
   A drink that warms one up.

   • Everyone was drinking warmer-uppers when we arrived—it was a cash bar, a big moneymaker, with quality liquors, Chivas and Crown Royal, though the wine was served from jugs and the beer was Bud. — 2003
2. •
   A worn item that warms one up.

   • Warmer-Uppers for Nippy Nights—UNIVERSAL Pajamas[…]UNIVERSAL Pajamas are real “warmer-uppers” that make ideal gifts. — 1944
3. •
   An act of warming up (preparing for an activity).