满口答应

• 氵(water; liquid)RADICAL
• 艹(grass; plant)ASSOCIATIVE
• 两(sea; ocean)PHONETIC

Water rising high to the grass tips means it is full and overflowing.

• 口(mouth; opening)ASSOCIATIVE

The character 口 is drawn as an open mouth shape for speaking or eating.

• ⺮(bamboo)RADICAL
• 合(match; fit together)PHONO-SEMANTIC

Bamboo strips joined together form a complete answer.

• 广(wide roof; broad eave)RADICAL
• 𤇾(inner form; response pattern)ASSOCIATIVE

Under a wide roof, every call finds someone to answer.