High tech unit
BYTE [I was thinking IPOD, etc.]Toot consequence
HANGOVER [I thought trains or cars]Lee side, Abbr.
CSA [I was thinking boats, not generals]Much more than tickle
SLAY [or "kill" are comedians' term for making audience laugh]Hardly a miniature gulf
ABYSS [I though ACABA --- liked the pun]Baseball card stat
DOB [tricky, usually its ERA or RBI]Call during a toss
CATCH [I thought heads or tails]
Theme: Change P to M
CRAMPEDFOREXAMS = Crammed for exams
HAMPERLOCK = Hammerlock
Don't know who SHEMP is but I feel I should.