Akademik

заморить червячка
ЗАМОРИТЬ ЧЕРВЯЧКА <ЧЕРВЯКА obs> coll
[VP; subj: human]
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to alleviate one's hunger by having a little something to eat:
- X заморил червячка{{}} X took the edge off his hunger;
- X had a snack <a bite to eat>.
     ♦ Заморив червячка, мы опять разговорились о разных вещах (Кожевников 1). After we'd had a snack, we talked about different things (1a).

Большой русско-английский фразеологический словарь. — М.: ACT-ПРЕСС КНИГА. . 2004.