The phrase "give suck" is an old-fashioned expression that means to breastfeed a baby or provide milk from the breast. It's not commonly used in modern English, but it can still be found in some literature or historical texts.
In more advanced contexts, you might encounter "give suck" in discussions about historical practices of infant feeding or in literary analyses of texts that mention breastfeeding.
While "give suck" primarily refers to breastfeeding, the phrase itself is not commonly used in modern English, so it doesn't have many alternative meanings.
There are no well-known idioms or phrasal verbs directly associated with "give suck" since it is a specific phrase. However, you might hear phrases like: - "Nurse back to health" (to take care of someone until they are healthy again).