hold in (
http://definr.com/hold in)
v 1: close in or confine [syn:
enclose,
confine]
2: lessen the intensity of; temper; hold in restraint; hold or
keep within limits; "moderate your alcohol intake" "hold
your tongue"; "hold your temper"; "control your anger"
[syn:
control,
hold,
contain,
check,
curb,
moderate]
3: hold back; keep from being perceived by others, as of
emotions or expressions of emotions; "She conceals her
anger well" [syn:
conceal,
hold back]