fulsome \FUL-sum\, adjective:
1. Offensive to the taste or sensibilities.
2. Insincere or excessively lavish; especially, offensive from excess of praise.
He recorded the event in his journal: "Long evening visit from Mr. Langtree--a fulsome flatterer."
-- Edward L. Widmer, Young America: The Flowering of Democracy in New York City
Concealed disgust under the appearance of fulsome endearment.
-- Oliver Goldsmith, The Citizen of the World
Fulsome is from Middle English fulsom, from full + -som, "-some."