When describing the consumption of liquid, the phrase "drank in" may be replaced by several synonyms. For example, "sipped," "gulped," "quaffed," "downed," "chugged," and "swallowed" are all viable options. "Sipped" implies slow and deliberate consumption, while "gulped" suggests a quick, large swallow. "Quaffed" may indicate a more elegant or sophisticated style of drinking, while "downed" and "chugged" both connote a sense of speed and perhaps even urgency. "Swallowed" is a more general term that can refer to any kind of intake, including food. Ultimately, the choice of synonym will depend on the tone and context of the writing.