Etymology: Polite/flippant alternative to "fuck", perhaps a contraction of "foo" and "fanagle".
1: to casually or passively experiment with something, especially something that is complex and which usually requires an intimate working knowledge.
2: to examine or assess something by brute-force or random testing.
1: to study irrelevant things at an inappropriate time.
2: to futz
"I'm foogling with this car engine."
"He never gets any work done, as he spends all his time foogling around on his computer."