a. in complete bewilderment or astonishment
b. in a state of inertia
very common in Australia
"Like a stunned mullet" "He just stood there like a stunned mullet"
A sneaky sexual move to illicite a look of absolute suprise (refer Stunned Mullet above) on your lady friend.
When your wife/girlfriend/flatmate is sitting peacefully on the sofa (watching TV) sneak up behind her with your cock out. Slap her head with it. The look of astonishment will be priceless
Jarrod's mum nearly died when I gave her a stunned mullet
the other day. His Dad is trying to kill me.
When Tamsin learned that DeShonda wasn't moving in on the second date, Tamsin was a stunned mullet.
A shit found floating in the surf
As Shane was catching a wave he noticed a stunned mullet floating by