put the arm on
to ask for a donation,a favor and the like....
Especially at re-election time a politician is sure to put the arm on his/her constituency.
Yawn-And-Put-The-Arm-Over-The-Shoulder Manouver
The cheesiest move a guy can ever do. ever. You yawn, and lift up your arms in a streching move, then put your arm over her shoulder. One of the hardest moves to pull off.
I saw a guy do the Yawn-And-Put-The-Arm-Over-The-Shoulder Manouver in france next to the eiffel tower before, and I wanted to go and shake his hand. But I didn't want to ruin the moment.
put arm under
When a girl with saggy tits sends you a nude and has her arm holding her tits with her arm so that they don't drag.
Dude, she captioned it put arm under. LOL
put the arm on it
To put the arm on something is to steal it.
A "nice sweater , where'd you get it ?"
B " Saw it in Macy's and put the arm on it."
B " Saw it in Macy's and put the arm on it."