hands up!
• used as an instruction to raise one's hands in surrender or to signify assent or participation.
• "hands up who saw the programme!"
hands down
• easily and decisively.
• "Swindon won hands down"
Similar:
easily,
effortlessly,
with ease,
with no trouble,
with very little trouble,
without effort,
with very little effort,
by a mile,
no sweat,
Opposite:
with difficulty,