effusive

Gushy; unrestrained, extravagant or excessive (in emotional expression).

effusive praise

All week I’ve found myself doing everything I can to distance myself in the crew’s eyes from the bovine herd I’m part of, to somehow unimplicate myself: I eschew cameras and sunglasses and pastel Caribbeanwear; I make a big deal of carrying my own cafeteria tray and am effusive in my thanks for the slightest service.

Pouring, spilling out freely; overflowing.

wash'd with the effusive wave

Extrusive; having solidified after being poured out as molten lava.