(colloquial, idiomatic) deceive, play a trick on someone

the fullest extent; the limit (of one's power, etc.)

maximal, possessing all one's might

Alternative form of 胸が一杯になる

to have a lump in one's throat, stomach full of food / (idiomatic) to be overwhelmed with emotions

one's best effort

a head louse

to mix (with), to be mixed (with) / to mingle (with), to be mingled (with) / to blend (with) / to be mixed (together) / to commingle

(informal) a serious comment or reply (i.e., not joking)

magic / Short for マジックペン (majikku pen, “marker”).