Lavish on
Definition 1 of 1
Pro Tip 1/3Generous Excess
Used when someone gives more than necessary, often to show affection or admiration. 
He would lavish on gifts whenever she achieved something, big or small.
Pro Tip 2/3Emotional Undertone
Conveys strong emotion such as love, pride, or gratitude when used in personal contexts. 
Grandma would lavish on attention and homemade treats whenever we visited.
Pro Tip 3/3Not Always Positive
Can imply negatives like excessiveness or spoilage when too much is given. 
The director's tendency to lavish on praise left employees feeling complacent.