Whoosh with sputtering or fluttering sound with in it.
Long sputtering electronic whoosh.
Fast whooshes, with sputtering effect in between.
A sputtering industrial drone with whirling background tone
Sputtering and fluttering accent
Noisy old plane engine, idles to stop
Human lips sputtering like a horse.
A human doing a long sustained lip sputtering sound. Raspberry.
A male blowing using his lips in a silly way. Raspberry.