The actual Finnish words for "hefty" are "roima" and "vahva", both of which can also mean strong or able-bodied. The Prime Minister appears not to say either of these words when she reads the inscription on Selena's gift.
In fact, she says "raskas" (lit. "heavy"), a misspelling of "rakas" (lit. "dear").
This a third Collaboration Between Dave Foley, and Julia-Louis Dreyfus, since a Bug's life, and new Adventures of Old Christine.